Westinghouse Wireless Intercom, 3-Channel, Pair This two-piece wireless intercom allows you to easily page someone in another room or talk with them with the simple press of a button 3 channels are available to talk or to monitor Monitor function permits use as a baby monitor - ability to listen to baby from another room in your home 3 Intercom channels allow up to 3 intercom stations to be used simultaneously No wiring required - operates where ever there is an existing 100-120-Volt AC plug in your home or office