1.89GHz-1.93GHz ( exact frequency range depends upon country where approved) Band Active Transceiver Antenna allows users to freely roam around a facility while staying connected to the base station. Each Active Antenna can create a coverage zone of up to 1,475 feet. One Active Antenna supports up to 5 beltpacks with the ability of adding more if roaming or more beltpack support is required. Up to 10 remote Active Antennas can be strategically placed to cover a wide area. Each active transceiver antenna is IP65 rated for water and dust resistance and has a mount for microphone stands, allowing use and placement in virtually any environment. Unique to the FreeSpeak II system, both 1.9GHz and 2.4GHz beltpacks and active transceiver antennas can co-operate on the same system, increasing both the quantity of users as well as the cell roaming area. A Clear-Com FreeSpeak II (FS II) system consists of five main elements: Wireless beltpacks (FSII-BP-19, FSII-BP-24). The Base station (FSII-BASE) that routes communication to and from the beltpacks and other audio devices. Antennas (FSII-TCVR-19, FSII-TCVR-24) that provide coverage zones in which the beltpacks operate. Optional antenna splitters (PD2203) that run up to 5 separate antennas. Suitable headsets such as the Clear-Com CC-300-X4.