MusicCast uses your Wi-Fi network to stream music wirelessly through your home. With MusicCast you can play the same music in all rooms or different music in each room. 5.1 Channel MusicCast AV Receiver. Virtual surround sound and Subwoofer Trim. YPAO Sound optimiazation. AirPlay and Bluetooth technology. Gapless playback. MusicCast Wireless Speaker Black. Exceptional sound and clarity. Onboard music enhancer. MusicCast Compact Wireless Speakers Black. Clear and balanced amazing sound. Compact size takes up a small footprint.