Denon HEOS 1 and HEOS 5 Wireless Multiroom Digital Music System, Black (HEOSand5BK) Heos 1 sealed enclosure features humidity protection Heos 1 connect via Bluetooth or to your Wi-Fi network and listen in high resolution Audio Heos 5 elegance meets performance Heos 5 absolutely amazing Sound from a discreet and stylish powerhouse Heos 5 connect via Bluetooth or to your Wi-Fi network and listen in high resolution Audio