Product 4.3 Wired Video Door Phone System Visual Intercom oorbell with 1 Monitor + 1*700TVL Outdoor Camera for Home Surveillance 1. The TFT 4.3 inch digital color LCD for monitor. 2. Clear night-viewing , 24 hours monitoring, calling, speaking and unlocking 3. TFT color screen with low power consumption, no radiation and high definition. 4. Hands-free intercommunication. 5. Brightness, chroma and volume adjustable. 6. Fully waterpoof, support outdoor working. 7. 25-chord melody rings for option. 8. Cabling: 4-core connection cable 9. Supports communication between two monitors. 10. Do not disturb mode 11. Additional monitor available up to 6(optional) and 3 outdoor cameras at most Indoor Monitor Indoor monitor Function: Intercom, Monitor ,Unlock the door Music: 25 music to adjust Power supply: Input AC100-240V Output: DC 15V 1200mA Screen size: 4.3 inch colour TFT-LCD Resolution: 480*272 Case:ABS Plastic Dimensions: 195x185x30mm Installation:Surface mounting Weight:0.65kg Outside Camera Camera: 700CMOS Super backlight compensation Night vision distance: WLED 3m Case: Zinc alloy Viewing angle: 85 to 92 degrees Dimensions: 50x125x27(mm) Net Weight: 0.35kg Package List: 1* Indoor Monitor 1* Outside Unit 1* 5m cable 1* Screws 1* Power Supply 1* Manual 1* Wall Plate 1* 2 pin wire 1* 4 pin wire 1* 5 pin wire