Aluminum alloy panel of indoor monitor, fashionable and luxurious.With aluminum alloy shell on outdoor unit, waterproof, antioxidant and durable to use. * 7" color TFT LCD screen, without radiation, low power consumption, high definition and with press key control.Outdoor camera with clear IR night vision can monitor and capture images in low-illumination environment. * Combines many functions in one: two-way intercom, surveillance, unlock, hands free call and talk, etc.16 different kinds of melodies for your choices.Volume, brightness and contrast are adjustable. * Supplied with connection cable and adapter, users can install it according to operating instruction. * This product can meet different requirements, such as one-to-one, one-to-two, one-to-three, one-to-four, two-to-one, two-to-two, two-to-three, two-to-four.Can be widely used in single-family houses, villas, offices, hotels and so on.