Out put:RMS 6W(3W*2)
Frequency response:150-18KHz(±3dB)
Signal and Noise of Power amplifier:≧80dB
Loud speaker:1.77 inch(external diameter 45mm) magnetic resistant 4 Ohms
Line in:configure 3.5mm stereo's plugs, U Disk, SD/MMC Card
Power supply:Build-in Litheium battery,5V/1000mA AC ADAPTER,PC USB
Lithium battery input:3.7V
Charge voltage: 4.2-5V
Battery capacity:500mAh
Built-in MP3 player that can play SD / MMC memory card MP3 player music files,
also read U disk
Supports all ipod charger (with 30pin) for playing music