The Eartec XT Com-Center Dual Channel Base Station is the centralized base transciever for up to 8 wireless headsets / beltpacks in the Comstar XT series. Achieve full duplex communication with 2 groups of 4 people, or 8 total in conference mode. Setup couldn't be easier as there are no channels to set, and the antennae for the base station are built in. The XT Com-Center Base Station may be powered with the included AC adapter, optional rechargeable batteries or alkaline batteries. Headsets are sole separately, allowing systems to be configured as desired.