Delivers seriously big stereo sound and deep bass in a take-anywhere design. Up to 24 hours of playback and easy charging with included Wireless Charging Base. Optimized power management keeps your battery going longer, and swapping in a replacement is quick and easy. Drop-resistant durability plus waterproof and dustproof protection (IP67). Stream over WiFi with your Sonos system at home, and stream with Bluetooth anywhere. Effortless control with the Sonos app, your voice, the buttons and more. Compact design fits comfortably in your hand, with an attachable loop for effortless carrying. Automatic Trueplay fine-tunes the sound for any environment. Group two or more speakers over Bluetooth to enjoy the Sonos experience anywhere, even off the grid. Doubles as a power bank to keep your phone and other devices charged.