Features: 7-inch color digital LCD screen, no radiation, low power consumption, true high definition widescreen display. Function: hands-free intercom, electronically controlled unlocking, outdoor surveillance, indoor intercom, no interruption, plug-in card video recording. The brightness, chroma and volume of the indoor unit image can be adjusted freely. The ultra-thin design of the indoor unit is beautiful and luxurious. Up to 24 polyphonic ringtones are available, pleasant and beautiful. The outdoor unit is exquisite and durable, with night vision infrared function and waterproof. With ID card password unlocking function. The effective distance can be connected to the 260-meter cable, and the image and intercom work are normal. Specification: Condition: 100% Brand New Material: ABS+PMMA panel Color: As picture shown Display resolution: 800*RGB*480 Power supply mode: switching power supply AC220V-50Hz DC15V 1.2A Machine current: less than 800mA Call delay time: 120S ± 10% Monitoring delay time: 40S ± 10% Camera sensor: HD color CMOS or CCD up to 700 lines Outdoor infrared night vision function: low open 10LUX infrared open Indoor unit dimensions: 235*145*21mm/9.3*5.7*0.8in (W*H*D) Outdoor unit dimensions: 90*180*24mm/3.5*7.1*0.9in (W*H*D) Indoor unit installation: wall-mounted Outdoor unit installation: wall-mounted Connection line: 5-core connection cable(standard configuration 1 meter) + two-core terminal cable (connected to electric lock) Instructions: 1. The visitor taps the outdoor unit call button, the indoor opportunity automatically opens the image, and at the same time, the preset ringtone is sounded. Press the indoor unit intercom button to talk to the visitor. If the visitor needs to press the unlock button, the electronic lock is automatically activated. Open (this product does not contain an electronic lock), no need to go to the door to open the door. 2. If you want to view the outdoor scene, press the monitor button; you need to do not disturb during the break time, press and hold the indoor unit intercom button for 2 seconds to start the function. At this time, if the visitor presses the outdoor unit call button, only the image will not Ring, press any button on the indoor unit to exit this function. 3. With camera recording function, call to take a photo, plug in the card can also record (TF card not included). 4. With password card unlock function, with two management cards, three user cards, up to 2000 user cards. Package List: 2 * Indoor unit 1 * Outdoor unit 2 * Indoor unit hanging board 2 * 5-core cable (standard configuration 1 meter) 2 * Switching power supply 2 * Screw package 5 * User card 2 * Instruction manual Note: Please allow slight dimension difference due to different manual measurement. Thanks for your understanding!