The Tempest900 wireless 4-Channel BeltStation operates in conjunction with the Tempest900 BaseStations. Each Talk button has individual LED indicators. The Talk button can be latching or momentary. The Call button sends a 2-wire compatible call signal to any wireless BeltStation and any hardwired intercom device on the intercom channel. BeltStations are provided with a rechargeable Li-Polymer battery capable of 9 hours of operation or can be powered by (3) Standard AA Alkaline batteries. Each BeltStation has its own back-lit display and menu functions which allow settings to be changed at the BeltStation locally.