Feature: 1. 25 DOORBELL RINGING: Video intercom system has 25 doorbell ring tones with adjustable bell volume, chroma and brightness. 7 inch slim design indoor display, beautiful and wall mountable. 2. IR CUT FUNCTION: Video intercom monitor with IR CUT function, rich and clear image color. ABS outdoor unit with rain and oxidation protection. The camera supports 1000 user cards, 1 password, 1000 fingerprints. 3. EASY CALLING: Video doorbell monitors the exterior of the door and easily calls and unlocks it. Simply press the monitor button and then press the unlock button on the monitor to open the door for visitors. 4. ALUMINUM PANEL: Night vision video doorbell is an aluminum alloy panel for stylish luxury. The camera is IR CUT 1/3in HD 1000TVL, supporting up to 1 outdoor unit and 4 indoor units. 5. APPLICATION SCOPE: Night vision video doorbell can be easily installed with the adapter and cable provided in this kit. Widely used in villas, apartments, houses, hotels, offices, public buildings, etc. Specification: Item Type: Video Intercom System Material: ABS, Aluminum Alloy Camera: CMOS 1000TVL LED: 2pcs 1W 6pcs 850nm LED LCD: 7in TFT 960x480 Call Duration: 120s±10% Monitoring Duration: 60s±10% Camera Display Angle: 92 Degree Outdoor Unit: Approx. 155x95x55mm / 6.1x3.7x2.2in Indoor Unit: Approx. 225x128x20mm / 8.9x5.0x0.8in. Package List: 1 x Outdoor Unit (Camera)1 x Indoor Unit (Monitor)1 x Adapter1 x 6 Pin Connection Cable2 x 2 Pin Connection Cable2 x 6 Pin Connection Cable1 x User Manual5 x Access Card8 x Screw8 x Screw Expansion Tube Note: Please allow some error due to manual measurement.