ifidelity Metal Millennium Bluetooth Speaker delivers pristine streaming audio from Bluetooth compatible devices like iPhone, iPad or Android devices. Play music, movies, and mobile audio as they were originally created in the studio, all within the palm of your hand. With the built-in microphone the ifidelity Metal Millennium Bluetooth Speaker allows you to conference call on-the-go through your smartphone or by video chat programs like Skype. Includes Micro USB to USB charging cable and 3.5mm Aux Cable. Playback time at max volume is 2hrs.