Bowers & Wilkins Zeppelin Wireless HiFi Speaker, Black Zeppelin Wireless is the same iconic design of the original Zeppelin, but features dramatically improved acoustics and functionality, making it the best one-piece audio system available. All-new drive units featuring the latest audiophile technologies: 2 double dome tweeters, two midrange drivers with FST technology and a 6.5" subwoofer for deep bass to be played at an impressive volume. No matter what devise you use with Zeppelin Wireless, the combination of Air Play, Bluetooth aptX and Spotify Connect means pristine sound is only a couple of button presses away. Supported by Bowers & Wilkins free control app for easy setup. dimentions Height 188mm Width 660mm Depth 183mm. Frequency response : 44Hz to 28KHz Bowers & Wilkins' Zeppelin Wireless comes with a 2-year limited warranty only when purchased from an authorized dealer. Amplifier power output: 2x 25W (tweeter), 2x 25W (midrange), 1x 50W (subwoofer).