Features System Includes: 1 Dual Channel XT Series Com-Center 8 Comstar BeltPack Transceivers 8 Comstar ProLine Single Headsets 1 Com-Center Battery, AC wall plug Description Product Description The Eartec COMSTAR CPKPS-8 Coaching Headset System is a Wireless Intercom System perfect for hands-free communication. Included in this System is: (1) Dual Channel XT Series Com-Center (8) ComStar Beltpack Transceivers (8) ComStar ProLine Single Headsets (1) Com-Center Battery, AC Wall Plug COMSTAR XT Series Full Duplex Wireless Systems are designed specifically for teams that need to communicate and still be able to work with their hands. These revolutionary intercoms are NOT VOICE ACTIVATED and there is NO DELAY when transmitting. This system allows the users to talk simultaneously just like on a regular telephone within a 800 yard range. At the heart of each COMSTAR System is a signal relay called the COM-CENTER. This centralized base transceiver is both AC powered or battery powered for on-location use and is totally portable. Each COM-CENTER can accommodate up to 8 users in Full Duplex. The COMSTAR COMPAK BeltPacks are Full Duplex transceivers that allow users to select the best headset accessory for their specific application. Included are a Microphone Mute Switch, Volume Control, and Belt clip. The BeltPacks have a range of 400 yards and operate in the 1900 MHz band for Voice Communications Only. The ProLine Single Headset for COMSTAR is one of the most popular headsets in the Eartec product line. These Mid-Weight models feature extra large, deluxe ear pads that totally surround the users ear blocking unwanted background noise.