Superior 360 degree surround sound quality. Bluetooth 4.1 version. Convenient rotating volume control dial. Built in microphone allows you to take hands free calls while the 3.5mm AUX jack provides an alternative for non Bluetooth enabled audio devices. Advanced 25W audio drivers allow you to fill large spaces with your chosen music. Micro USB charging port. The exterior is covered in a soft woven mesh for rugged durability. What's in the box 1x Bluetooth speaker. 1x Micro USB charging cable. 1x 3.5mm Audio cable. 1x User manual.