Roll over or click image to zoom in
Max Sound Output: 130±3dB
Sound Gain: ≥40dB
Total Harmonic Wave Distortion: ≤10%
Frequency Range: 450-3000Hz
Input Noise: ≤32dB
Voltage: USB 5V/50mA
Current: ≤10mA
Battery: rechargeable battery
Battery Charing: 2 hours
battery using: 8-10hours
Mode option: 3 modes
Volume grade: 1-7 in 7 grades
Product size: 52*48*17mm
Net. Weight:9g
