Stream music wirelessly via Bluetooth from any Bluetooth-enabled device. Integrated RCA audio inputs to connect optional wired home audio devices such as iPods, cd players and TV's as an optional audio source. Delivers sound with striking accuracy with our world-class acoustic tuning and modeling. Supports universal Bluetooth protocol SBC as well as CD audio quality apt-X. Volume, playback, audio source controls, and Bluetooth connect button are conveniently placed on the top of the left speaker. Bluetooth version 4.0, Amplifier: 36 Watt Output Power, 2x 18 Watt RMS Distribution, 50 Hz - 20 kHz Frequency Range, Speakers: 1-Inch Tweeter Drive Unit, 3.5-Inch Woofer Drive Unit Grace Digital's Powered Bookshelf aptX Bluetooth Speakers are the perfect solution to your home audio needs. Featuring Bluetooth 4.0 wireless connectivity, these powerful and high quality sound speakers are designed to fit your lifestyle and provide portable sound no matter where you are. Our speakers are based on the latest "apt-X" codec, which delivers CD audio quality sound, wirelessly. The modern, compact and light weight design makes them the perfect choice for anyone looking to add a lot of sound to any room! Whether you are looking for Bluetooth speakers for your computer, game room, patio, den or study, the GDI-BTSP207's are the perfect Bluetooth speaker. They provide a monitor style audio performance in a small footprint. The GDI-BTSP207's are the perfect choice for those who enjoy listening to the music the way the artist intended it to be heard.