Mini Hearing Aids - Portable Audiophones With Adjustable Tone Amplifier

Free Shipping! This mini hearing aid is a SUPER MINI lightweight ear amplifier that can be used in either ear. Adjust the volume to the minimum before wearing. Increase volume gradually to avoid sudden increase in sound. Suitable for movies, enjoying plays & drama, attending musicals, having meetings or classes; it really helps to you hear all types of sounds clearly and loudly.   1. Max sound output: 110±5dB 2. Sound gain: ≥30dB 3. Total harmonic wave distortion: ≤10% 4. Frequency range: 300-4000Hz 5. Input noise: ≤40dB 6. Voltage: DC1.5V 7. Current: ≤4mA 8. Color: As pictured   1 x Hearing Aids 2 x AG3 Button Cells 1 x Instruction Manual 1 x Case