{"product_id":"adjustable-schumann-wave-signal-generator-0-01-999-99hz-dual-coil-oled-display-4-channel-audio-output-for-meditation-health","title":"Schumann Wave Signal Generator | 0.01–999.99 Hz | OLED Display | 4-Channel Audio","description":"\u003cp style=\"font-size: 15px; color: #444; line-height: 1.8;\"\u003eFrequency matters in wellness practice, and precision in that frequency matters even more. This Schumann wave signal generator covers a range of 0.01 to 999.99 Hz with fine-grained adjustment, making it suitable for structured meditation protocols, focus training, and biofeedback exploration well beyond the standard 7.83 Hz Earth resonance frequency. The dual-coil electromagnetic transmission design delivers a stable, consistent signal rather than the degraded output common in single-coil alternatives, with an automatic frequency reset that restores the last-used setting after power loss.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; color: #444; line-height: 1.8;\"\u003eFour independent AUX audio output channels carry pure, crosstalk-free signals simultaneously — useful for group sessions, multi-channel audio setups, or running parallel output to different transducers. The OLED display shows real-time frequency, waveform type, and battery level at a glance. A built-in 2000mAh lithium-ion battery makes the unit genuinely portable. A high-speed DAC handles switching between pure sine wave and square wave output, so the signal character can be matched to the application rather than fixed by the hardware.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; color: #444; line-height: 1.8;\"\u003eAvailable in White and Black. A precision wellness instrument for practitioners who want control over the frequencies they work with.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0;\"\u003e\n\u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003eWhite | Black\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003e0.01–999.99 Hz Range\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003eDual-Coil Electromagnetic\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003e4-Channel AUX Output\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003eOLED Display\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003eSine \u0026amp; Square Wave\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003e2000mAh Battery\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003eTransparent Acrylic Housing\u003c\/span\u003e \u003cspan style=\"background: #f0f0f0; color: #1a1a1a; padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600;\"\u003ePortable | Rechargeable\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eWhy This Generator\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px; font-size: 14px; color: #444; line-height: 1.8;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Frequency Range (0.01–999.99 Hz):\u003c\/strong\u003e Covers the full spectrum from deep delta and theta ranges through alpha, beta, and beyond — not locked to a single preset frequency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Coil Electromagnetic Transmission:\u003c\/strong\u003e Two-coil design provides stable, reliable signal output. Automatic frequency reset restores the last setting after power interruption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Channel Independent AUX Output:\u003c\/strong\u003e Four simultaneous audio outputs with pure, crosstalk-free signals — suitable for multi-channel setups, group sessions, or parallel transducer configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOLED Real-Time Display:\u003c\/strong\u003e Shows current frequency, active waveform type, and battery level at a glance without navigating menus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSine \u0026amp; Square Wave Switching:\u003c\/strong\u003e High-speed DAC allows on-the-fly switching between sine and square wave output to match the signal character to the application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2000mAh Built-In Battery:\u003c\/strong\u003e Rechargeable lithium-ion battery supports extended portable use without mains dependency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransparent Acrylic Housing:\u003c\/strong\u003e Visible internal components and a compact, considered form factor that reads as a precision instrument rather than consumer electronics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\" open=\"\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eDevice Specifications\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; color: #444;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eFrequency Range\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003e0.01–999.99 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eCoil Design\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eDual-coil electromagnetic transmission\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eAudio Output\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003e4 x independent AUX channels, crosstalk-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eDisplay\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eOLED — frequency, waveform, battery level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eWaveform Types\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003ePure sine wave, square wave (switchable via DAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003e2000mAh built-in Li-ion, rechargeable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eHousing\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eTransparent acrylic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eColour Options\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eWhite, Black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003ePower Recovery\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eAutomatic frequency reset after power loss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eRefer to shipping documentation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eSourcing\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eImported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #ffffff;\"\u003e\n\u003ctd style=\"padding: 8px 12px; font-weight: 600;\"\u003eFulfilment Type\u003c\/td\u003e\n\u003ctd style=\"padding: 8px 12px;\"\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eStyling Tips \u0026amp; Suggestions\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eDedicated Meditation Space\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003ePlace the generator on a low surface at seated eye level during practice. Connect to a speaker or transducer via one of the four AUX outputs to fill the space with the selected frequency. Set to 7.83 Hz for Earth resonance work, or explore delta (0.5–4 Hz) and theta (4–8 Hz) ranges for deep relaxation protocols.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eHome Office or Focus Environment\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eRun alpha frequency ranges (8–14 Hz) during focused work sessions. The compact form factor and rechargeable battery allow the unit to sit on a desk without cabling to a wall socket. The OLED display provides at-a-glance confirmation without requiring interaction during a session.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eSound Healing or Therapy Practice\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThe four independent AUX channels allow simultaneous output to multiple transducers or speakers, enabling layered frequency delivery in a professional or semi-professional wellness context. Square wave output provides a sharper harmonic character suited to some sound therapy applications.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eSleep Support Setup\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eSet to delta range (0.5–4 Hz) and connect to a low-output speaker or pillow transducer for a passive sleep-support environment. The automatic frequency reset means the device restores the last setting without reconfiguration if it loses power overnight.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eResearch or Biofeedback Exploration\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThe 0.01–999.99 Hz range and switchable waveform types make this unit useful for structured frequency exploration beyond typical wellness presets. The transparent acrylic housing allows visual inspection of the coil configuration during operation.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eYoga Studio or Group Wellness Setting\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eFour simultaneous AUX outputs allow distribution to multiple speakers around a studio space. The portable, battery-powered design means the unit can be repositioned between sessions without rewiring. Select White for a minimal, neutral aesthetic in a light-toned studio environment.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f0ecf9; color: #3d2b6e; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eTravel or Portable Wellness Kit\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThe rechargeable battery and compact acrylic form factor make this unit suitable for travel use alongside a portable speaker. No mains dependency during a session means it works in any environment — hotel rooms, retreat spaces, or outdoor settings.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdiv style=\"background: #fff5f5; border: 1px solid #e05555; border-radius: 8px; padding: 14px 16px; margin-top: 12px; font-size: 13px; color: #c0392b; line-height: 1.7;\"\u003e\n\u003cstrong\u003eNot Ideal For:\u003c\/strong\u003e Buyers expecting clinical-grade medical device certification — this is a wellness tool, not a medical instrument; those who require a fixed 7.83 Hz-only output without broader frequency range; buyers unfamiliar with Schumann resonance or binaural frequency concepts who may find the range and controls unnecessarily complex.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eSize Guide\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003cp style=\"font-size: 14px; color: #444; line-height: 1.8;\"\u003eThis is a compact electronic device. Confirm exact dimensions from the product listing before ordering. The transparent acrylic housing and portable form factor are designed for desktop or surface placement. No special installation space is required.\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888; margin-top: 10px;\"\u003eEnsure adequate ventilation around the device during extended operation. Keep clear of moisture and direct sunlight. AUX output cable length will determine the effective placement range from connected speakers or transducers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eCare \u0026amp; Maintenance\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eMaterial \u0026amp; Usage Notes\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003e\n\u003cdiv style=\"background: #fffdf5; border: 1px solid #d4a843; border-radius: 8px; padding: 12px 16px; margin-bottom: 12px; font-size: 13px; color: #7a5c00; line-height: 1.7;\"\u003eUnless a product is specifically sourced from a country with a similar climate to the EU or Western regions, electronic component performance may vary in high-humidity or extreme-temperature environments. Operate in stable, dry indoor conditions for optimal performance and longevity.\u003c\/div\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eInspect the device upon delivery before first use.\u003c\/li\u003e\n\u003cli\u003eRetain original packaging for any warranty or return purposes.\u003c\/li\u003e\n\u003cli\u003eDo not expose the acrylic housing to solvents, alcohol-based cleaners, or abrasive materials.\u003c\/li\u003e\n\u003cli\u003eCharge fully before first extended use session.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eOngoing Care\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eWipe the acrylic housing with a dry or lightly damp cloth. Avoid abrasive cloths that may scratch the transparent surfaces.\u003c\/li\u003e\n\u003cli\u003eKeep AUX port contacts clean and dry. Insert and remove cables with care to preserve connector integrity.\u003c\/li\u003e\n\u003cli\u003eRecharge the battery before it fully depletes to extend battery cycle life.\u003c\/li\u003e\n\u003cli\u003eStore in a dust-free environment when not in use — a protective pouch or case is recommended for travel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eFrequently Asked Questions\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eWhat is the Schumann resonance frequency?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThe Schumann resonance is the natural electromagnetic frequency of the Earth’s atmosphere, most commonly cited at approximately 7.83 Hz. This device can generate that frequency precisely, as well as a broad range above and below it for extended wellness and frequency exploration applications.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eCan all four AUX outputs run simultaneously?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eYes. All four AUX channels are independent and output simultaneously with the same pure signal, free of crosstalk between channels.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eWhat is the difference between sine wave and square wave output?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eSine wave output produces a smooth, continuous signal — the natural waveform shape most commonly used in meditation and wellness applications. Square wave output produces a sharper, harmonically richer signal sometimes preferred in specific sound therapy or research applications. The high-speed DAC allows switching between both modes.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eHow long does the battery last per charge?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eBattery life depends on output settings and usage intensity. The 2000mAh lithium-ion battery is designed for extended session use. Refer to the device documentation for specific runtime estimates under different operating conditions.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eDoes the device require speakers or transducers to function?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThe generator outputs signal via AUX audio connections. For audible or vibrational output, you will need a connected speaker, transducer, or headphones. The electromagnetic coils also emit a direct field independently of the audio output.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eIs this a medical device?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eNo. This is a wellness and personal exploration tool. It is not a certified medical device and is not intended to diagnose, treat, cure, or prevent any medical condition. Consult a qualified healthcare professional for medical advice.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 4px;\"\u003e\n\u003csummary style=\"background: linear-gradient(90deg,#f0f0f0,#e0e0e0); color: #1a1a1a; padding: 12px 18px; border-radius: 10px; font-weight: bold; font-size: 15px; list-style: none; margin-bottom: 4px; cursor: pointer;\"\u003eShipping \u0026amp; Delivery\u003c\/summary\u003e\n\u003cdiv style=\"background: #ffffff; border: 1px solid #e0e0e0; border-radius: 0 0 10px 10px; padding: 16px 18px;\"\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eOrder Type \u0026amp; Processing\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eThis is a stocked item dispatched from our fulfilment centre. Orders are processed within 1–2 business days of payment confirmation.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eStandard vs. Express Shipping\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eStandard shipping is available for all destinations. Express options may be available at checkout depending on your location.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eDelivery Timeframes\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eEstimated delivery is 7–15 business days for standard shipping, subject to carrier and regional conditions. Express timelines vary by destination.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eOrder Tracking\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eA tracking number will be issued by email once your order has been dispatched. Use the carrier link provided to monitor your delivery in real time.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eCircumstances Beyond Our Control\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eDelays caused by carrier operations, customs clearance, weather events, or public holidays are outside our control. We will communicate any known delays as promptly as possible.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"margin-bottom: 6px;\"\u003e\n\u003csummary style=\"background: #f5f5f5; color: #1a1a1a; padding: 10px 14px; border-radius: 8px; font-weight: bold; font-size: 13px; list-style: none; cursor: pointer;\"\u003eNeed Help?\u003c\/summary\u003e\n\u003cdiv style=\"padding: 12px 16px; font-size: 14px; color: #444; line-height: 1.8;\"\u003eFor order enquiries, delivery updates, or post-delivery issues, please contact our support team through the store’s contact page. We aim to respond within one business day.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp style=\"font-size: 11px; color: #999; text-align: center; margin-top: 20px;\"\u003eProduct images are for illustrative purposes only. This product is a wellness tool and is not a certified medical device. It is not intended to diagnose, treat, cure, or prevent any medical condition. Consult a qualified healthcare professional before use if you have any health concerns.\u003c\/p\u003e","brand":"Aideepen Applied Store","offers":[{"title":"White","offer_id":51378769657892,"sku":"12000056705619887","price":136.54,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":51378769690660,"sku":"12000056705619886","price":136.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2281\/7497\/files\/S1efb4a89f5494051ba22c86e084bb891s.webp?v=1788434877","url":"https:\/\/www.treselite.com\/zh\/products\/adjustable-schumann-wave-signal-generator-0-01-999-99hz-dual-coil-oled-display-4-channel-audio-output-for-meditation-health","provider":"Très Elite","version":"1.0","type":"link"}