Technical Parameters
Power supply
DC5V
Active power
3W
Frequency
100Hz__18KHz
Noise-Signal ratio
≥85dB
Impedance
4 OHM(Ω)
Speaker Unit
D40mm 4Ω 2W
Case Material
ABS
Lithium battery capacity
1200mAh
Color
White/ Black/ Blue/Gold
Wireless Selfie speaker 
Horn
Light Bar.
USB Card slot, support MP3 format music
Working state indicating lamp
The power switch
The Audio line input / inserted data line to increase the FM radios signal.
Lanyard hole.
The charge Micro USB interface.
TF card slot,support MP3 format music
A short click for the next song,long press to increase the volume
Click for a short, long press to reduce volume
Music play / Pause/ call/ in FM mode, 
long press 3 seconds for automatically searching stations, 
          short press to stop searching.