For rocking, crystal-clear sound, enjoy the Logitech® X100--the go-anywhere wireless mobile speaker. Wirelessly connect and stream music from your Bluetooth®-enabled device from up to 30 feet away. Easily manage phone calls and volume control from your mobile phone. Enjoy five hours of continuous play, and then recharge the built-in lithium-ion battery using the included micro-USB cable. Connector/Port/Interface: Bluetooth®; Depth: 1 5/8"; Height: 6 1/2"; Width: 5".