Rechargeable Hearing Aid Mini Adjustable Tone 2024 Best Sound Amplifier Portable Deaf Elderly RIC Hearing Aids

  Description Rechargeable Hearing Aid RIC Digital Invisible Hearing Aids For Elderly Deafness Mini Hearing Aids Sound Amplifier Voice Adjustable Portable Inner Ear Aid Care Product Feature: 1.USB Rechargeable,Long Standby Time. --Charging 3 Hours,Working 40 Hours 2.One key operation for elderly,Easy to use. 3.Non-inductive design,Comfortable to wear. 4.Digital Noise Cancelling,Make you hear better and clearer. Product Parameters: 1.Product size:43x16.5x11.3 mm 2.Weight: about 3g 3.Material: medical - grade TPE environmentally friendly materials 4. Working Voltage: DC 3.7V 5. Working Current: ≤1mA 6. Frequency Response: 500-5000Hz 7. Max Saturation Acoustic Output: 129dB(+3dB) 8. Full Acoustic Gain: 40dB(±5dB) 9. Total Harmonic Distortion:＜10% 10. Equivalent Input Noise:＜32dB