MX Controls proudly Introduces the worlds first "USB Headset HUB". This HUB allows any 2 USB Headsets to directly communicate to each other as well as to an externally connected analog device at the same time. It also simultaneously allows the users to listen to either an optical or analog connected source device. The MX1 is powered from its internal rechargeable battery or from its micro USB connector. The micro USB connector is also used for charging the internal battery and installing firmware updates.