1,Built-inMP3/WMA/FM(optional)MusicDecoder. 2Support32-320kbpsMP3Music. 3SupportUSBHostSD/MMCCard. 4,SupportAudioin. 5,RatedPower:RMS3W*2. 6,FrequencyResponse:150HZ-18KHZ. 7,S/NRatio: 85DB. 8,PowerSupply:Li-ionBattery(800mah)andUSBmini5Pin. 9,SpeakerDrivers:3W/4 . 10,Accessories:3.5mmto3.5mmaudiocable,usbA-Minicable,RemoteControl. 11,AvailableColors:Red/Green/Whitecolor.