Add a completely wireless intercom system to your home or business, and you'll be able to talk to anyone within a 1000-foot range. The Reporter Wireless Intercoms use a 900 MHz digitally secure radio link between units, and they require no wall power, allowing you to place them anywhere within range. The Reporter Wireless Intercom can be powered by four AA batteries or any 12-volt power adapter (batteries and power supply sold separately).Two intercom units are included with the Reporter Wireless Intercom, but additional intercom receivers are sold separately. Since there is no limit to the number of intercoms that can be used, you can include one in each room of your home. The intercom is easy to use. Just hold down the "talk" button, and every intercom unit in the network will receive the signal. When somebody responds by holding down his own "talk" button, a secure channel is created; no other unit will receive the signal, and no one else will be able to hear your conversation. The Reporter's advanced system features four channel selections. Broadcast to all channels simultaneously or speak to one party through the automatically secured link. The system can always be left on. Keep your intercom in monitoring mode for voice-activated use: It will no longer be necessary to press the "talk" button in order to transmit. This setting is ideal for parents who want to use this product as a baby monitor. Designed to operate with power-saving technology, the Reporter Wireless Intercom runs continuously for 12 months on four AA batteries. Additional features include adjustable volume. Reporter flushmount wireless intercoms are also available in sets of one and two and are sold separately. These can be mounted on any wall of your home and added to your intercom network in the same manner as any additional wireless intercoms.