Colorful Video Door Phone Provides Your Security. Surface wall mounted for easy installation, 7-inch color monitor ensures you see and speak with all visitors freely! This video intercom door phone system is wired system, it includes 1-outdoor color camera, 1-color LCD 7 inch screen. With an ultra-flat design, great sound quality, dimmable display, and 16 selectable doorbell tones for additional personalization, integrated video door phone and access control, it brings more convenience in daily use. Please collect more information about our website: https://olefinsbd.com/product/video-door-phone/