1.Light, portable 2.Support TF card 3.FM radio 4.Buit in ... good Li-ion battery,easy to carry4.Applicable for PC,DVD,Mp3,iPod,PSP,cell phone etc,and other audio output ... Power : USB power 3.7V and lithium battery10Applicable for : PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc.11Audio connectors ...