The Sonos ZonePlayer ZP120 is a digital music media streamer that allows you to enjoy your favorite music in multiple rooms of your home. With its sleek white design and 1st generation technology, this device delivers high-quality sound through stereo audio L/R RCA and raw cable speaker jacks. It also supports Dolby Surround sound formats for an immersive listening experience. Featuring Wi-Fi and Ethernet connectivity, the ZP120 is perfect for streaming your favorite MP3 files and other music content. Overall, this Sonos ZonePlayer is a reliable and great addition to any home audio setup. This media streamer is tested and works great.