LG Sound Bar with Subwoofer, NB3520A: * 300 total watts of power * 80 watts of power for each of the two-way speakers, which have a 2.5" midrange driver and a 1" dome tweeter * 140 watts of power for the subwoofer * Two 1" tweeters employ silk-dome technology * Speaker sound bar is magnetically shielded to prevent interference with televisions * 2.1 channels * Wireless subwoofer simplifies system wiring * Bluetooth music streaming capability * 3D surround effect processor * Compatible with MP3, WMA, Dolby Digital and DTS audio formats * Two optical audio inputs for digital devices * USB port * LG sound system includes a remote control, two AAA batteries, optical cable, wall mount bracket and instruction manual