1. Support USB flash drive and SD/MMC card inputs, as well as Auxiliary input (not support USB and SD below 32M); Auto search mp3 files.

2. Seven colors LED light.

3. Audio input support:IPOD/MP3/MP4/PC/Laptop and Mobile etc.

4. Built-in rechargeable battery. 
Technical Data:
 Input voltage: DC5.0V/500MA
Output: 2.0W*2
Frequency response: 150 HZ-20KHZ
Impedance: 4R
Signal to Noise Ratio: >75db
 Material: environment-protection ABS
 Powered supply: Li-ion battery 3.7V 800mAh
Packing Details:
Unit Size:    18*9.2*12.2(CM)
Unit Weight:  0.175KG
Qty/ctn:      60PCS 
Meas/ctn:    56*47*50.5(CM)
GW:        18KG 
 Accessories:
 USB charge cable
  3.5mm audio cable