Attractive design, mini size, light weight
Built-in lithium battery, the capacity is 110mAh
It can work 25h after fully charged
Sound gain of 50dB
On/Off switch
Volume control
N-H switch
Different size noise prevention earplug
Strict quality control, test by the hearing aid test machine of Fonix 7000 and Fonix 8000
Specification:
Max Sound Output: 129±4dB
Max Sound Gain: 50dB±5dB
Harmonic Wave Distortion: ≤5%
Frequency Range: 450~3500hz
Input Noise: ≤30dB
Battery: Lithium Battery
Working Voltage: DC 3.7V
Working Current: ≤4mA
Main Unit Size: 46x27x16mm
Net Weight: 12g