The powerful microphone-free speaker for music and more. Get rich, room-filling sound with Sonos One SL, and control it with the Sonos app, Apple AirPlay 2, and more. The compact design fits just about any space. Humidity resistant. Two Class-D digital amplifiers perfectly tuned to match the speaker drivers and acoustic architecture. One tweeter creates a crisp and clear high-frequency response. One mid-woofer ensures you'll hear the faithful playback of mid-range vocal frequencies plus deep, rich bass. Adjustable bass and treble controls. WiFi.