TMEZON 7 Inch Color LCD Video Door Phone Intercom System Features: 1.Hands-free video intercom 2.Automatically snapshot and recording,advanced motion detect function 3.Internal call between indoor units 4.Key-unclock,call transfer,and monitoring function 5.Connect up to 4x monitor+2x doorbell+2x CCTV camera+2x PIR alarm. 6.Adjustable brightness,contrast,ring volume and microphone volume 7.Different 12 ringtone option Monitor: * Display:7" TFT LCD(16:9),800(H)x480(V) * Unlock:Monitor * Memory:Micro SD Card (not include,32GB max.) * Power Supply:Built-in(AC 100~240V),DC12V * Multiple Intercom:Up to 4 monitors * Multiple Doorbell:Up to 2 doorbells * Ringtone:12 optional * Made of high quality Acrylic * Installation: Surface mount(Wall mount) Doorbell Camera * Camera sensor: 1/4 CMOS,1200TVL * Pinhole/ 100¡ãwide angle camera * Anti-oxidation aluminium alloy panel * Simple 4-wire connection * IR LED illumination for better night vision * Keypad with blue LED backlight for night operation * Rainproof,Dustproof,and Anti-vandal * Power Supply: Supplied from indoor monitor Package Included: * 3x 7 inch Monitor * 1x Doorbell Camera * 1x Power adapter * 5x 200mm 4 pin connector * 1x 200mm 2 pin connector * 2x Screw Bag * 2x User Manual