Features:

1. Max sound output:125±3dB

2. Sound gain: ≥28dB±5dB

3. Total harmonic wave distortion: ≤3%

4. Frequency range:300-3500MHz

5. Input Noise: ≤32dB

6. Voltage: d.c.1.5V

7. Current: ≤2mA

8. Full charing in 6 hours

Charing light in Orange color, full charing in Greeen color

9. Working time to 16 hours

10. Built-in 25mAH recharging battery for hearing aid unit

11. Charing box without built-in battery, needs USB charging cable

List:

2 x Host

1 x Charging compartment

6 x Earplugs

1 x Brush

1 x English manual

1 x USB data cable