2.0 bluetooth,TF card reader, lithium battery,compatable with MP3,MP4,PSP, stmart phone, laptop,MID,PC.

Support iPhone,iPad and all with stereo bluetooth phone.perfect sound quality.With TF card

Compatible with PC,Mp3,Mp4 and all audio  devices with 3.5mm output jack or Bluetooth Power: Built in lithium battery, USB POWER

With LED Fuction

RMS:3W.Frequency response :20Hz~20kHzS/N ratio>80dB

Protable AUX in, TF, bluetooth speaker