1) Behind the ear hearing aid
2) Volume adjustable
3) Powered by 1 x AG3 battery (included)
4) Silicone earplugs in 3 different sizes fit most ears
5) Help people with hearing impairment to hear sound and voice
Technical parameters:
1) Max sound output: 110?�5dB
2) Sound gain:>=30dB
3) Total Harmonic wave distortion : ?10%
4) Equiv Input Noise: ?32dB
5) Frequency range:300Hz~4000Hz
6) Voitage:1.5V(AA)
7) Current: ?4mA
2) Volume adjustable
3) Powered by 1 x AG3 battery (included)
4) Silicone earplugs in 3 different sizes fit most ears
5) Help people with hearing impairment to hear sound and voice
Technical parameters:
1) Max sound output: 110?�5dB
2) Sound gain:>=30dB
3) Total Harmonic wave distortion : ?10%
4) Equiv Input Noise: ?32dB
5) Frequency range:300Hz~4000Hz
6) Voitage:1.5V(AA)
7) Current: ?4mA
