Rechargeable Hearing Aid with APP Control Bluetooth Hearing Aids Digital Sound Amplifier For Elderly Deafness audifonos

Feature:

* USB Rechargeable

* Bluetooth Function (make calls and music)

* 7 Volume Levels to adjust–Touch control

* Touch 1 sec answer the phone

  3 sec hang up the phone

  5 sec reject the phone

Technical Specification:

1. Output. OSPL90 Max. ≤ 105dB

2. FOG50 MAX Gain ≤ 33dB

3. EQ Input Noise ≤ 33dB

4. FREQUENCY RANGE(Not narrower than):  200Hz-4500Hz

5. Working Current ≤ 7mA/

6. Total Harmonic Distortion <5%

7. Working Voltage D.C 3.7V

8. Play Time: 8 hours