supply S-868D portable usb ,fm speaker
Satellite Speaker Power:8 Watts RMS per channel (2 channels)
Subwoofer Power:20 Watts RMS
Frequency Response:40Hz ~ 20kHz
Signal-to-Noise Ratio (SNR):70 dB
with fm, ,USB SD slot, Remote controller
Compatible with VCD/CD/LD/Stereo system
High sound quality for PC games, Music etc.