GENERAL ELECTRIC WIRELESS 51214 FRS Intercom (2 Pack) Great for the backyard or family outings, the SmartHome Wireless FRS Intercom utilizes FRS ( Family Radio Service ) digital FM components and a secure communication protocol Communicate at ranges up to 2 miles, with 38 subcodes for each of 22 channels Hands free VOX function Wall or desktop mountable Operates by optional batteries or included AC adapter