Total Harmonic Wave Distortion: <=7%. 2 Hearing Aids(Main Unit). we only sales hearing amplifier. Input Noise: <=32dB. Maximum sound output output: 117+/-3dB. Charging and usage. 1 USB Cable. Frequency Range: 400-4500MHz.
4PCS Size 13 Rechargeable Hearing Aid Batteries, NIMH Battery Size 13 Button Rechargeable Batteries for Wokyo Hearing Aid Amplifiers Battery Charger Travel Case Station
Rechargeable Hearing Aid Batteries And Charger for 13 Hearing Aid Amplifiers Battery Charger with 4 Pack Button Rechargeable Batteries
Rechargeable Hearing Amplifier for Seniors - Noise Cancelling & Volume Adjustable Sound Device, Comfort BTE Design, Rechargeable Hearing Aid (06D Blue)
ZPower 312 Rechargeable Hearing Aid Battery - ZPower Battery Silver-Zinc XR41 (1/Pack - Size 312) - Compatible with Hearing Aids Using ZPower Rechargeable Systems
Trihear Convo Hearing Amplifier With Remote Mic | Easy-to-Use Rechargeable Hearing Aid Alternative for Seniors, Elderly | Personal Sound Amplifier for Hearing Loss, Impaired
JINGHAO Rechargeable Hearing Aid Mini Hearing Amplifier For Hearing Loss UK
