Zhudele 7inch Wired LCD Monitor Intercom Camera Video Door Phone Doorbell Features: 1. 7inch TFT-LCD screen and 800x480 resolution with no radiation, low power consumption and high definition. 2. Touch button design indoor unit, high-end and beautiful to show the luxury style. 3. It has 8 ringtones to choose from, and the music is beautiful and pleasant. 4. The display color, ringtone, and intercom volume can be adjusted. 5. The door machine uses a 700-line camera for excellent image quality.  6. Support electric lock-control function, hand-free intercom function and monitoring the outside of the door. 7. It can be used by an external surveillance camera and easy installation. 8. With HiFi speaker, house number luminous display and doorbell button. 9. The door machine is made of anti-oxidation and wear-resistant metal casing, which is dustproof, waterproof and explosion-proof. 10. With 1 to 2 designs, it is more convenient and safe to open the door. 11. Support camera automatic photosensitive, SDP noise reduction and night vision fill light.   Specification: Condition: Item Type: Video Doorbell Material: ABS Color: As Pictures Shown Brand: Zhudele Display: Colorful 7 inch LCD screen Connection: 4core 6core cable Camera Definition: 700TVL Image Resolution: 800x480 Application: Family, Villa, Office, Hospital, Bank Night Vision Illumination: Approx. 5m / 16.4ft Fill Light: 6 Package List: 1 x Outdoor Camera 2 x 7inch Display Screen 2 x Wiring Harness 1 x Manual 1 x Package of Screws 2 x Power Supply Instructions for Use: 1. The visitor presses the button of the door machine, and the indoor unit emits a crisp ringtone and displays the visitor's The image owner can press the intercom button on the display to talk to the visitor. The intercom and image delay time is about 5 seconds. 2. If the electronic lock is connected, when the display is open, press the unlock button of the display, the electric lock It can be opened (to prevent accidental unlocking, the display must be open, unlock the key to unlock). 3. Standby state, the display button is pressed to monitor the door, and the delay is about 30 seconds each time. 4. Press the monitor button and then press the intercom button to monitor the door and talk to the person at the door. If the intercom is finished, press the intercom button to end the pass and close the image. 5. The display has 8 polyphonic ring tones to switch freely. 6. The brightness, color and volume of the display can be adjusted according to the actual situation.