If you are interested in, you could add my skype id lillianchang0709 Sp-5580 Description: Wooden case for whole set, including woofer and satellite speakers Infrared remote control Digital led indication Dual-bass Specification: Power output:-----------------------rms55w (15wx2+5wx5) Subwoofer: -------------------------15wx2 Satellite: -------------------------5wx5 Speaker driver: --------------------woofer: 4inch x 2; --------------------satellite: 3 inch x 5 Subwoofer speakers: ----------------20hz-200hz Satellite speakers:-----------------100hz-20khz Separation: ------------------------>=45db S/n ratio: ------------------------->=75db Key word:home theatre system, home theater system, home cinema system, audio products, speaker system, home stereo system, 5.1 ch home theatre, loudspeaker Packaging Master carton, gift box, remote control, user manual, rca cable, rca to 3.5mm converter, fuse, batteries Option 2.4g wireless technology for surround speakers Fm radio function Usb otg, mp3, wma playback Sd/mmc card reader Digital decoder with optical and coaxial input Bluetooth Www (dot) xcreative (dot)cn Carton, gift box, user's manual, remote control, batteries, fuse