professionelle Lautsprecher

professional speaker description: functions: 1.can play mp3 music from USB dick/SD/MMC card/notebook /mp3/mp4 2.Earphone out and portable Audio 3.Dual power supply mode 4.high-efficiency class D amplifier, perfect sound quality,brand-new constructed speaker, abundant treble and bass 5.apply to the complexed functions key, one key can be used as many functions, easy to operate 6.Increase the subwoofer circuit, built-in LAN-in jack, can be connected with MP3,NOTEBOOK,MD,CD and other audio devices. 7.Built-in Li-battery,long endurance, and convinient to chargeParamenters: Paramenters: Power : 3W+3W Frequency Response : 90Hz-20K Hz Distortion: <0.10% S/N: >70 dB Separation: >45 dB Full Frequency Speaker: 2” Product Size (L*W*H) 225*70* 40MM Accessories: 1.USB transform Mini USB connector 2.3.5mm-3.5mm stereo connect cable Package: 1.packing:color box+carton box 2.Qty/Carton:50Pcs, 3.colorful box size:190*100*95MM 4.product size:173MM*80MM*75MM(L*W*H) 6.Weight:240G