The LifeCare LC-405 is a compact, discreet ear-worn sound amplifier designed to improve hearing clarity for individuals with mild to moderate hearing difficulty. With a maximum sound output of 130 ±5 dB and a minimum gain of 50 dB, it delivers meaningful amplification while maintaining natural-sounding audio through low harmonic distortion (≤10%) and a frequency response range of 300–4,000 Hz — covering the primary range of human speech for clearer conversation.
Adjustable volume control allows users to customise amplification to their individual preference and environment. The device operates on a standard zinc-air DC 1.5V hearing aid battery with a current draw of ≤4 mA for energy-efficient use. Four zinc-air batteries are included, along with multiple earplug sizes to ensure a secure, comfortable fit for different ear canal shapes.
The miniature form factor makes the LC-405 discreet for all-day wear in social and professional settings. This is a personal sound amplifier — not a medical hearing aid. Individuals with diagnosed hearing loss should consult an audiologist for clinical hearing aids.
Why Choose LifeCare Hearing Aid Amplifier
- 130 ±5 dB Maximum Sound Output: High maximum output for effective amplification across a range of sound environments.
- ≥50 dB Sound Gain: Meaningful amplification of incoming sound for improved speech and environmental hearing.
- 300–4,000 Hz Frequency Range: Covers the primary speech frequency range for clearer conversation.
- ≤10% Total Harmonic Distortion: Low distortion for natural, clear sound reproduction.
- ≤30 dB Input Noise: Low internal noise level for a cleaner listening experience.
- Adjustable Volume: Fine-tune amplification to individual preference and environment.
- Compact, Discreet Design: Mini in-ear form factor suitable for all-day wear.
- Energy Efficient: ≤4 mA current draw for long battery life.
- Multiple Earplug Sizes: Ensures a secure, comfortable fit for different ear canal sizes.
- 4 Batteries Included: Ready to use immediately with four complimentary zinc-air batteries.
Product Specifications
| Brand | LifeCare |
| Model | LC-405 |
| Type | Ear Mini Hearing Aid Amplifier |
| Max Sound Output | 130 ±5 dB |
| Sound Gain | ≥50 dB |
| Frequency Range | 300–4,000 Hz |
| Total Harmonic Distortion | ≤10% |
| Input Noise | ≤30 dB |
| Operating Voltage | DC 1.5V (zinc-air battery) |
| Current Consumption | ≤4 mA |
| Battery Type | Zinc Air |
| Batteries Included | 4 × zinc-air batteries |
| Earplug Sizes | Multiple sizes included |
| Suitable For | Mild to moderate hearing difficulty |
Usage Instructions
- Remove the paper tab from the zinc-air battery and allow it to activate for 1 minute before inserting.
- Insert the battery into the battery compartment of the amplifier according to the correct polarity.
- Select the appropriate earplug size from the included set and attach to the amplifier.
- Insert the amplifier into the ear canal gently.
- Turn on the device and adjust the volume control to a comfortable level — start low and increase gradually.
- To remove: gently pull the device from the ear canal.
- Turn off the device when not in use to preserve battery life. Remove the battery if the device will not be used for an extended period.
Warnings and Precautions
- This is a personal sound amplifier — not a prescribed medical hearing aid. It is not intended to diagnose, treat, or compensate for medically diagnosed hearing loss. Individuals with hearing loss should consult a qualified audiologist.
- Do not use at excessively high volume levels — prolonged exposure to amplified sound above safe limits can damage hearing.
- Do not use while swimming or in heavy rain — the device is not waterproof.
- Keep batteries away from children — zinc-air batteries can be hazardous if swallowed.
- Do not insert deeply into the ear canal — if resistance is felt, stop and consult a healthcare professional.
Frequently Asked Questions
Is the LC-405 a hearing aid or a sound amplifier?
The LC-405 is a personal sound amplifier (PSAP) — not a medical hearing aid. PSAPs amplify environmental sounds and speech for people with mild hearing difficulty, but are not clinically programmed for specific hearing loss patterns. For diagnosed hearing loss, consult an audiologist for a prescribed medical hearing aid.
What frequency range does the LC-405 cover?
The LC-405 covers 300 to 4,000 Hz — the core speech frequency range for human voices. This makes it particularly effective for improving conversation clarity in face-to-face settings or during TV watching.
How long do the batteries last?
Battery life depends on usage frequency and volume setting. Zinc-air hearing aid batteries typically last between 5 and 14 days with regular use. The device’s ≤4 mA current draw supports efficient battery usage. Four batteries are included to get started.
What earplug size should I use?
Try each of the included earplug sizes to find the one that fits most comfortably and securely in your ear canal. A proper fit improves sound seal, reduces feedback (whistling), and ensures the amplifier stays in place during daily activity.





























































































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