MusicCast uses Wi-Fi network to stream music through home. With MusicCast you can play the same music in all rooms or different music in each room. 150W 7.2 Channel MusicCast AV Receiver. AV Controller app. Compressed music enhancer. (4) MusicCast Compact Wireless Speakers Black. Takes up a small footprint. Compact size takes up a small footprint. All-Weather Speakers. High quality sounds meets excellent weatherproofing. IPX3 Waterproof and UV resistant. MusicCast 7.1Ch Sound Bar w/ Wireless Subwoofer. Sound Projector technology.