... li-battery 4.Fast delivery time:20-25day Hot Model of Mini Stereo Amplifier with LCD Screen(A3) Function and characteristics ... ,easy to carry4.Applicable for PC,DVD,Mp3,iPod,PSP,cell phone etc,and other audio output device5.Accept EOM/ODM ... : USB power 5V and lithium battery10Applicable for : PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc.11Audio connectors: 3.5mm ...