features 7in TFT LCD monitor, including one outdoor camera and two indoor monitor, which combines functions of visual intercom, real-time surveillance, remote unlock, rainproof and night vision, which is widely used in villas, apartments, houses, hotels, offices, public buildings and so on. Features: *7 color TFT LCD screen, 800*480 high definition. *Rainproof and oxidation-proof outdoor camera. *3pcs high-intensity IR LEDs for good night vision effect. *Hands free call and visual intercom. *Real-time outdoor surveillance for home security. *25 kinds of music rings optional. *Adjustable ring volume and intercom volume of indoor monitor. *LCD screen brightness and contrast adjustable. *Max. connection support: one outdoor camera + six indoor monitor.