The DX200 provides private, secure communication. Each base station can have up to a total of fifteen BP200 Beltpacs and/or WH200 All-in-one Wireless Headsets and/or WS200 Wireless Speaker Stations “registered” to it. All Beltpacs or all WH200 Headsets, or a combination of Beltpacs, Headsets and Speaker Stations can be used. Four of the fifteen can transmit at the same time. However, by connecting two or more base stations together, these numbers can be increased. For example, two base stations can support thirty Beltpacs/ Headsets/Speaker Stations, of which eight can transmit at the same time. Beltpacs, Headsets or Speaker Stations can be used either in the push-to-talk or hands-free mode. The base station operator can stop all Beltpacs/Headsets/Speaker Stations from transmitting. The DX200 can be used with RTS® and Clear-Com® cabled intercom systems. On the intercom channel, 2-wire and 4-wire cabled intercoms can be operated at the same time. Also, using the AUX In and AUX Out connections, a second 4-wire intercom channel can be used. Either a monitor speaker or a local headset can be used with the DX200. Using a local headset, the base station operator can talk to crew members on the cabled intercom channel, Beltpacs/Headsets/Speaker Stations only, or all channels. The BS200 Base Station and WS200 Speaker Station can be operated using standard DC electricity or a vehicle electrical system for mobile operation. A power supply and cable are included with the base station.