- Oracle FrontDoor wireless doorbell and intercom starter kit - Truly wireless 1000ft. range - 5 Year battery life - Compatible with all Oracle intercoms - Telephone interface - Designed for residential and commercial applications - Tolerates severe outdoor conditions of -40 degrees F to +85 degrees F and high humidity - Mounts on to any surface in a few seconds with provided 3M high strength tape, or can be mounted with screws - Waterproof, ice, and heat proof - Penetrates buildings with ease - Crystal clear, digitally secure connection - 900MHz Digital technology - Auto channel and frequency selection - No wires or wiring required - Intuitive, easy setup - When used with Oracle TIU telephone interface unit, this unit will ring telephones and allow you to speak with the visitor by phone. no wiring required, just plug in to any phone jack. Also features caller ID. - Includes 1 FrontDoor intercom unit, 1 Telephone Interface unit, mounting screws and tape, telephone cord, antenna, and AC adapter - Intercom unit is white