Features:
• 100% brand new sound amplifier behind the ear
• Super mini size and light weight, not easily to be seen
• Adjust volume to the minimum before wearing
• Choose an earplug of slightly bigger size to avoid whistler
• Increase volume gradually to avoid sudden increase in sound
 
Technical Specifications:
A,Max.saturater volume output:128±5 dB .
B,Max voice gain:40±5 dB
C,Harmonic distortion:≤10%(1000 Hz)
D,Equivalent input noise level:30dB
E,Frequency range:300—4500 Hz
F,Battery voltage:DC 1.5V(The A76 button battery a grain)
G,Directivity: omni—directional
Product color:beige
volume of machine:3.8*2.1*0.9cm3
weight of machine :11g
weigt of machine and packing:80g
 
Package included:
• 1 x hearing aid amplifier
• 3 x AG13 button cell battery
• 2 x ear cap
• 1 x manual