... Volume lON / OFF: Power Switch V-: volume reductionSD / MMC: MICRO SD TF card interface or the interfaceUSB: Connect your computer or ... bring their own rechargeable lithium battery2: with Tuner3: The new mini-aluminum diaphragm speakers, clear treble, bass pure, unique design, ... DVD.IPOD.IPHONE.GPS.PSP. Handset. Laptop. U disk. MICRO SD.6: metal casing, unique, more noble fashion, different, variety ...