4.3 Inch Wired Video Door Phone System Visual Intercom Doorbell. Features: The TFT 4.3 Inch Digital Color LCD for Monitor. Clear Night-viewing , 24 Hours Monitoring, Calling, Speaking and Unlocking TFT Color Screen with Low Power Consumption, No Radiation and High Definition. Hands-free Intercommunication. Brightness, Chroma and Volume Adjustable. Fully Waterproof, Support Outdoor Working. 25-chord Melody Rings for Option. Cabling: 4-core Connection Cable Supports Communication Between Two Monitors. Do Not Disturb Mode Additional Monitor Available Up to 6(optional) and 3 Outdoor Cameras at Most Specifications: Connection Method: Wired Camera Sensor Type: CMOS Display Size: 4.3 Display Screen Type: Color Material: Aluminum Alloy Power: 15V IP Camera Interface: No Samrt Home Interface: No Kit Configuration: One to One Video Doorphone Installation: Wall Mounting Resolution: > 420 TV Line Doorbell: Yes Sensor Size(Inch): 1/3 Camera: Color Type: Intercom System Power: 100-240V Connection Type: Wired Waterproof: Yes Connection Cable Length: 5M Resolution: 700TVL Type: 4.3'' Video Door Phone Package Included: 1* Indoor Monitor 1* Outside Unit 1* 5m Cable . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.