Output power:30W+10W*2
Speaker unit:4"+3"*2
Fequency response:20-20kHz
Impedance:4ohms-8ohms
Speaker Size:175*190*180MM
110*90*115MM
1.USB/SD/MMC/MS with direct reading&prior-playing function
2.SRS---Sound Retrieval System
3.3D stereo dynamic bass engine,vibration
4.large-calibre bass speaker
5.speaker with preventing-magnetic design,you can put speakers wherever you want