17 inch color LCD display screen, without radiation, low power consumption, high definition 2Ultra-slim design of indoor unit, mirror panel, plating button, nice and luxurious. 3Beautiful and durable outdoor unit, digital luminous keyboard, tamper alarm, wall mounted. 424 kinds of different melodies for your choices.Volume, brightness and contrast are adjustable. 5Combines many functions in one: two-way intercom, surveillance, unlock, hands free call and talk, etc.
