Wholesale 4-wire 7-inch LCD Display Video Doorphone PY-V809MF11

Wholesale 4-wire 7-inch LCD Display Video Doorphone PY-V809MF11   Product Discription: 1.4-wire, 7-inch LCD display   
2.Colorful CMOS camera 
3.with 5 meters connection wire
4.with call out, intercom, unlock, night vision, monitor function
5.Max Combination: 6 monitors+1 camera,  4 monitors+2 cameras  
6.Max communication distance: 200m 7.Weight: 1.38KG 8.Dimensions: 11.8*28.5*18.5(cm)    Product Display:   Package includes: 1 * Outdoor camera
1* Indoor monitor
1 * AC adapter
1 * 5m 4-core connection cable 1 * 2-core connection cable
1 * Package of screws
1 * User manual - English