Features:
100%competive price
Advanced high quality analogue hearing aid
Volume control
Max sound gain up to 50dB
ON/OFF swich
Volume control
Main Unit size 53*44*9mm ，NG:8g
Different size noise prevention earplug for selection
Clear and loud voice
CE Approval and One year warranty

Specification:
Max Sound Output: 129dB ± 4dB
Max Sound Gain: 50dB ± 5dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 450~3500 hz
Input Noise: ≤30 dB
Battery: AG13 or A675 (Zinc Air Battery)
Working Voltage dc1.5V
Working Current: ≤4 mA
Measurement: 53x44x9mm
Net Weight: 8g

Package included:
1 x hearing aid amplifier
5 x earplug (different size)
2 x button cell battery
1 x manual
1 x case