2.1ch amplifier: 27W x2+54W; speaker system: full range x2 + woofer x1 - all contributing to a pleasurable listening experience
Sound mode: movie/music/news - versatile sound system
Bluetooth v. 4.2 - you can connect external audio devices wirelessly to play music from those devices through the sound bar thus lengthening your playlist
USB port x1 - you can connect your flash drive to this unit to play the music saved on it through the sound bar
HDMI ARC x1 - you can connect the sound bar to the TV