Rugged, versatile design lets you bring the music anywhere with the iBT371 Bluetooth-enabled wireless system with built-in speakerphone capability. Color changing accent lighting modes make every location a party. Stream wireless digital audio via Bluetooth from your Bluetooth-enabled devices. Works with free Melody voice powered personal music assistant app to play music from Spotify, iHeartRadio and more. Built-in mic and digital voice echo cancellation make speakerphone use a pleasure. Operates on internal rechargeable battery, charges via USB charging port (USB cable included). IP67-certified water and sandproof, shock proof. Carry strap with carabiner clip included.