Bose COMPANION 5. Connectivity technology: Wireless. Weight: 10.1 kg. Packaging width: 386 mm, Packaging height: 267 mm. Compatible operating systems: Windows XP + / Mac OS X 10.4.6 +. Audio output channels: 5.1, Subwoofer dimensions (WxHxD): 172 x 217 x 425 mm, Surround speaker dimensions (WxHxD): 147 x 225 x 97 mm