Brand new and high quality hearing aid sound amplifier
Super mini size and light weight, not easily to be seen
Adjust volume to the minimum before wearing
Increase volume gradually to avoid sudden increase in sound
Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly
 
Detail :
Max sound output: 110±5dB
Sound gain: ≥30dB
Total harmonic wave distortion: ≤10%
Frequency range: 300-4000Hz
Input noise: ≤40dB
Voltage: DC1.5V
Current: ≤4mA
Color: As pictures
 
Included:
1/2 * Hearing Aids
2 * AG3 Button Cells
1 * Instruction Manual
1 * Case

4 * Units of earplug of different size