Impressive speaker, extraordinary sound from a compact speaker, clarity and enough bass. Also very loud. It has two tweeters for stereo sound and a mid woofer. You cannot beat Sonos quality. Works with bluetooth or wi-fi via Sonos app. Can be connected to an external source (turntable) via line-in. Can be paired for stereo or surround sound. New condition, 2 years warranty, comes with all original packing. Thanks