... Great USB 2.1ch Portable Subwoofer Mini Speaker (Jonter DS-301) Usage Instruction:1.unique design for subwoofer speaker2.mini speaker ... order5.high quality package6.applicable for PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc Technique parameters:1Model: Jonter DS ... power 5V and lithium battery10Applicable for : PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc.11Audio connectors: 3.5mm stereo ...