1.Output power: 6W ( 3 W +3 W )THD =10%
2.Frequency Response: 150Hz -18KHZ
3.Loud Speaker: 4Ω 3W*2
4.Signal and noise ratio: ≥85dB
5.Output:  3.7V*500MA
6.Input:  5.0V


Function and feature  (built-in battery)
1.audio in:link to mp3,mp4,mobile and other audio device
2.FM Function
3.suppport TF/USB DISK
4.With LED Screen display
5.Car Inside pink flashing light