... li-ion battery Best-Seller Lyrics LCD Plastic Speaker Box(V510) Function and chatacteristics instruction:1.USB power input2 ... response: 90Hz-20KHz6Sensitivity: 80db±2db7Distortion: ≤0.3% 8Battery: rechargeable and replaceable lithium battery9Input Power : USB power 5V and lithium ... battery10Applicable for : PC,DVD,PSP,cell phone,Mp3,vedio game,ipod,etc.11Audio connectors: 3.5mm ...