The Sonos Connect:Amp *GEN 1* Digital Music Streamer is a high-quality audio device that allows you to stream digital music in AAC format with Dolby Digital surround sound. It features a sleek gray design and connectivity options such as Wi-Fi and Ethernet port. The device also supports MP3 music and RCA stereo audio output. This first-generation unit from Sonos is designed for easy setup and use, perfect for enhancing your home audio experience.