7in Video Intercom 3 Monitors Smart Doorphone System RFID Night Vision Doorbell Features: 1. 7in color TFT LCD screen, which has no radiation, low power consumption and high definition. 2. IR-CUT camera has night vision function, it can provide clear picture even at night. 3. It features electronic lock control, hands free intercom and outdoor monitoring functions. 4. Up to 25 ringtones can be selected, it can give you sweet-sounding and pleasant using experience. 5. Easy to install, no complicated tools required, convenient for using. 6. 3 monitors, which can absolutely meet the needs. Outdoor Camera Specification: Condition: Model: HID3 Night Vision: Infrared Lamp, Visible within 9.8ft Angle of View: 92 ° Wide Angle Resolution: > 1000TV Line Plus Control: Automatic Power Consumption: Standby: 2W; unlock: 12W Installation: Embedded Installation Size: Approx. 265 x 128 x 48mm/10.4 x 5 x 1.9in Material: Aluminum Alloy Monitor Specification: Condition: Screen: 7in TFT/LCD Valid Pixels: 480 x 234 x 30 Power: ≤8W (operation), ≤0.5W (standby) Wiring: 4 wires Size: Approx. 240 x 150 x 20mm/9.4 x 5.9 x 0.8in Specification: Condition: Item Type: Video Doorbell Package List: 1 x Outdoor Unit (3-key Camera) 3 x Indoor Machine (Monitor) 3 x DC15V Adapter  7 x 125KHz RFID Card 6 x 4-Core Connecting Cable 3 x 2-Core Connecting Cable 3 x Screws Package 1 x Manual Note: 1. The electric door lock/release cable is connected to the camera unit. 2. The connection lock must be used in conjunction with the access control power supply 3. Each indoor unit is connected to the external unit through 4 core wires 4. The equipment is powered by indoor machine.