This is the wireless speaker made by Harmon Kardon, the company that pioneered high fidelity audio equipment and is still synonymous with best-in-class sound performance. While streaming a household’s entire music library effortlessly to any room, garage, deck or patio, this speaker delivers profound sound that belies its small enclosure. Its four-speaker array (two 3/4" tweeters and two 3" woofers) combines crisp, harmonious trebles and mid-ranges with robust bass that rivals beefier boxes. The speaker has some of the broadest connectivity capability of any speaker on the market, with built-in Bluetooth, AirPlay, and DLNA technology to easily find the laptop or mobile device that is its source. Playback begins at the command of a smartphone loaded with the free remote app. Provides eight hours of playback with a two-hour charge of its battery. Includes USB and auxiliary jacks. 11" Diam x 3" D. (8½ lbs.)