Sabrent Weather Resistant 900MHz Wireless Indoor/Outdoor 150 Ft/ 50 m  2 Stereo Speaker System with Remote and Dual Power Transmitter (SP-ESKY)
Listen to music just about anywhere without the hassle of running speaker wire. Powered by 900MHz Phase Loop Lock circuitry which automatically locks in and keeps the audio signal clear and strong within a range of up to 150 feet with no line of sight limitations. The signal works just like high powered wireless 900MHz phones delivering a crystal clear signal through walls or any other obstacles, offering endless installation options. The system transmitter supports all types of audio inputs including RCA inputs for home theater receivers, MP3 players, computers, iPod, iPhone, and iPad.