Please note that the price does not include customs duties!! Customs duties need to be borne by the buyer themselves. The 2-wire system required only two wires, power, audio, video and control signal all transmitted by a 2-wire cable, non polarity, central power supply. Use Plug-in connectors and DIP switchers for rapid installation.Integrated Multi functions with simple operation makes the system more attractive, Flexible cable connection to wire, support in-out, branching and mixed mode. Features: 1.The 2-wire system required only two wires, power, audio, video and control signal all transmitted by a 2-wire cable. 2.Using integrated power supply,max support 2 outside unit and 4 indoor monitors 3.Little rain and oxidation-proof for the durable aluminum alloy outdoor unit. with White Led Night Vision 4.7" color TFT LCD without radiation, low power consumption and high definition. 5.To unlock 2 locks simultaneously 6.Hand-free intercom. 7.Mute indoor intercom function. 8.Monitoring the outside of the door. 9.Volume, brightness and contrast adjustable. Specifications: Outdoor Camera 1.Aluminum alloy outside unit with White Led Night Vision 2.Camera: 1/3" CMOS 1000TV line 3.View angle: 130° 4.Connection way: BUS 2-wire 5.Installation: Embedded mounted 6.Size:238*141*41mm 7.Material:Aluminum alloy Monitor 1.Screen: 7inch LCD 2.Effective pixels: 800 * 480 3.Connection way: BUS 2-wire 4.Dimensions: 151 * 80 * 38(MM) 5.Package size: 29 * 19* 12cm Electric Strike lock: Performance Testing: 1000000 times aging test Opening Mode: 90 degree swinging door Working Voltage: 12VDC Working Current: 0.2-0.45A Dimension (Face Plate): 15x3.95x2.8cm Package includes: 1 * Outdoor Unit (Embedded mounted Camera) 3 * Indoor Unit (Monitor) 1 * DC24V2.5A power supply 1 * Electronic Door Lock 1 * Exit Button 1 * 2.5*2P 2-core Connection terminal wire 1 * Screws 1 * User Manual