This Edifier Bluetooth bookshelf speaker set includes titanium dome tweeters, an 8” bass driver unit, Bluetooth 4.1 aptX wireless sound, side panel controls and a wireless remote that offers control over source, volume, playback and more. The speakers have digital signal processing and dynamic range control. Power output: 15W + 15W, Treble 25W + 25W bass. Subwoofer: 10.4” x 12.3”. Speakers: 5” x 6” x 8.75”.