The Denon HEOS Link turns your existing Hi-Fi into a multiroom system, letting you enjoy your favourite music from across the web on your favourite existing music system. Simply connect the link up to your chosen device, be it a Home Cinema System or a Hi-Fi & stream music from your home network or using an online music services such as Spotify or Napsters. The Link also features a stereo pre-amp output as well as both coaxial & optical outputs, giving you a high quality way of connecting to multiple devices while a USB (Universal Serial Bus) input lets you connect music filled USB (Universal Serial Bus) devices directly to the link.