Mini Amplifier 1.Hot model 2.Support USB/SD/LCD ... li-battery 4.Fast delivery time:20-25day Hot Model of Mini Stereo Amplifier with LCD Screen(A3) Function and characteristics:1 ... good Li-ion battery,easy to carry4.Applicable for PC,DVD,Mp3,iPod,PSP,cell phone etc,and other audio ... Power : USB power 5V and lithium battery10Applicable for : PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc.11Audio connectors ...