... clean treble4).Compatible with laptop,iPod, MP3, MP4, MP5,cellphone,PSP ect. via 3,5mm audio cable5).Dual power supply: USB&Lithium Battery6). ... injection.7).Screwless, one-in-whole cabinetTechnical Data:Power:USB, Lithium BatterySignal transfer:AUX in 3.5mm,USB ,TF card& ... Manual; Audio Line Cable;Usb Cable Multi Function Sport Music--Compatible with laptop,iPod,MP3,MP4,MP5, cellphone,PSP etc. via 3. ...