Built-in mic allows for use as a hands-free phone and is perfect for conference calls, Speaker is easy to connect using A2DP V3.0 EDR and has an operating range of 10M/33 feet, Built-in subwoofer provides exceptional quality sound, Includes a USB cable for recharging and a 3.5mm audio jack for non-Bluetooth® devices, Features three easy-to-use buttons on the top of the speaker - phone button to take calls, volume up, and volume down, Turn any mobile device into a portable sound system,