english packaging hearing aid for the elderly battery hearing aid microphone hearing aid

Electroacoustic Performance:

1. Maximum saturated sound pressure level: ≥120 dB
2. Full load sound gain: ≥30 dB
3. Average gain: ≥18 dB
4. Harmonic Distortion:

a) When the frequency is less than 1000 Hz, it shall not exceed 10%
b) When the frequency is greater than 1000 Hz, it is not more than 4%
5. Equivalent noise: ≤50 dB.
6. Frequency response: Not less than 250Hz to 3500Hz

Features
Brand new and high-quality hearing aid sound amplifier
Super mini size and light weight, hardly noticeable
Adjust the volume to the minimum before wearing
Increase the volume gradually to avoid a sudden increase in sound
Ideal for watching movies, enjoying dramas, attending meetings, or taking classes, it helps you hear sounds clearly and loudly

Specification:
1. Maximum sound output: 110±5dB
2. Sound gain: ≥30dB
3. Total harmonic wave distortion: ≤10%
4. Frequency range: 300–4000 Hz
5. Input noise: ≤40 dB
6. Voltage: DC1.5V
7. Current: ≤4mA
8. Color: As shown in the pictures

Items Included:
1 x Hearing Aids
2 x AG3 Button Cells
1 x Instruction Manual
1 x Case
3 x Earplugs of different sizes