The Sonos Connect (Gen 2), S2 compatible component that streams music wirelessly to your existing stereo system, featuring analog (RCA) and digital (Optical and Coaxial) audio inputs and outputs for connecting to your home network via Ethernet or Wi-Fi (supporting 802.11b/g on 2.4GHz) and control through the Sonos app. It connects to your speakers via standard RCA or optical/coaxial digital outputs and can also receive audio from external sources through its line-in ports.