Forty hours. That's how long the C420 runs on a single charge — and when it does need power, the included case tops it up four more times before you ever need to find a cable. Tiny enough to disappear inside the ear canal, the C420 is built for people who want to hear more clearly without announcing that they're doing so. It comes with everything: six ear tips across multiple sizes, cerumen guards, a cleaning brush, a tuning stick, and a full manual. Just pick your colourway and get on with your day.
This is an imported product sourced through our global supplier network. Specifications and performance claims are based on manufacturer information for this imported product. Individual results vary. This product has not been independently tested or verified by us. Buyers are responsible for verifying that this product complies with local health device import and use regulations before ordering.
Important: This device is a Personal Sound Amplification Product (PSAP) — it is not a medical-grade hearing aid and has not been clinically evaluated or approved as a medical device. It is intended to amplify sound for individuals with mild to moderate difficulty hearing in specific situations. If you are experiencing significant, sudden, or worsening hearing loss, please consult a qualified audiologist or physician before use.
Product Details
Specification
Details
Best For
Mild to moderate difficulty hearing in everyday situations · Users who prioritise discretion and invisible fit · Long wear days without access to charging · Older adults seeking a simple, non-prescription sound amplifier · Anyone wanting a complete out-of-box kit
Not Best For
Significant, sudden, or worsening hearing loss (consult an audiologist) · Those requiring a clinically prescribed hearing aid · Children
Device Type
Personal Sound Amplification Product (PSAP) — not a medical hearing aid
Model
C420
Fit
In-ear (invisible canal fit)
Colours Available
Red-Blue · Skin Tone
Battery Life
Up to 40 hours per charge (manufacturer claim)
Charging Time
Approx. 3 hours
Charging Case
Included · Provides up to 4 additional full charges
Multiple days of use before needing to recharge — ideal for travel or long wear days
Charging case (4× capacity)
Stay powered for weeks without a wall outlet — compact enough for a pocket or bag
Invisible canal fit
Sits deep in the ear canal — virtually undetectable in everyday situations
6 ear tips + cerumen guards
Find the right fit and keep the device clean — everything included, nothing to buy separately
3-hour fast charge
Quick turnaround when you do need to recharge — back to full in under half a workday
Setup & Use
Charge the device fully via the charging case before first use. Connect the case to a USB power source using the included Type-C cable. Insert the device into your ear canal using the ear tip size that fits most comfortably — a snug seal improves sound quality. Use the tuning stick to adjust settings as described in the user manual. Replace cerumen protectors periodically to maintain sound clarity.
Note: If you experience discomfort, feedback (whistling), or any adverse reaction during use, discontinue immediately and consult a healthcare professional.
Care & Maintenance
Use the included cleaning brush to remove earwax and debris from the device tip after each use. Replace cerumen protectors when sound quality diminishes. Wipe the exterior with a dry, soft cloth. Do not expose to water, moisture, or extreme temperatures. Store in the charging case when not in use. Keep out of reach of children. Do not attempt to disassemble or repair the device yourself.
Frequently Asked Questions
Q: Is this a medical hearing aid or a sound amplifier?
A: This is a Personal Sound Amplification Product (PSAP) — it amplifies sound for individuals who have difficulty hearing in certain situations. It is not a prescription medical hearing aid and has not been clinically evaluated or approved as a medical device. If you have significant or worsening hearing loss, please consult an audiologist before purchasing.
Q: Does the 40-hour battery life refer to continuous use?
A: Yes — according to manufacturer specifications, the device provides up to 40 hours of continuous use per charge. Actual battery life may vary depending on volume level and usage conditions. This claim has not been independently verified by us.
Q: What does the charging case do exactly?
A: The charging case stores the device and recharges it when not in use. It holds enough power to fully recharge the device up to four times before the case itself needs to be plugged in — making it ideal for travel or extended time away from a power outlet.
Q: What are cerumen protectors and why do they matter?
A: Cerumen protectors are small filters that sit at the tip of the device to prevent earwax from entering and blocking the sound port. Replacing them periodically (when sound quality starts to diminish) keeps the device performing well and extends its lifespan.
Q: Are there any import restrictions I should be aware of?
A: As a health and assistive device, this product may be subject to additional import scrutiny or health product regulations in some countries. Buyers are responsible for verifying that this product complies with local health device import and use regulations before ordering.
Shipping & Returns
Worldwide shipping with same-day dispatch on eligible items; most orders arrive within 3–7 business days. VAT and customs duties are prepaid for most destinations — what you see at checkout is what you pay for the majority of our products. However, as a health and assistive device, this product may be subject to additional import scrutiny, inspection fees, or duty assessments beyond standard prepaid coverage in some countries. Any such charges imposed by your local customs authority are the buyer's responsibility and are not included in the purchase price. This applies to all shipment types, including express. Please verify your local customs and health product import regulations before ordering. We are not responsible for customs delays, holds, seizures, or additional charges applied at the border. Orders refused at delivery, uncollected from a pickup point, or delivered to an incorrect address due to customer error remain the customer's responsibility. Full policies are at the footer of our website.
Planning a bulk order? Contact us for bulk pricing and subscription discounts.
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In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
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In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
In stockEnjoy worldwide shipping with same-day dispatch on eligible items and 3–7 business days for most regular orders. Delivery time depends on the shipping method you choose, and the estimated arrival date is shown on each product page. For most regions, we prepay Value-Added Tax (VAT) and customs duties to ensure a smooth, hassle-free delivery. In rare cases where a local customs office applies additional fees, these are outside our control and must be paid by the customer to release the package. Full details can be found across our policy pages, including International Shipping,Shipping & Handling, and Returns & Exchanges.
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