LED Display Digital Hearing Aids Rechargeable Noise Reduction Sound Insulation Deaf Headphones Amplifier

Features:

1.Max sound output:111±5dB

2.Sound gain: ≥30dB±5dB

3.Total harmonic wave distortion: ≤5%

4.Frequency range: F1≤200Hz, F2≥5000Hz

5.Input Noise: ≤28dB

6.Voltage: d.c.1.5V

7.Current: ≤1.2mA

8. Full charging in 2~3 hours, working more than 30 hours

9. The 300mAh recharging box for 3 times recharging to extend hearing amplifiers with 90 hours working.

10. The recharging box with power capacity LED display

Package contains:

2 x Host

1 x Charging compartment

6 x Earplugs

1 x Brush

1 x Manual

1 x USB cable