1、[SIMPLE OPERATION METHOD] Supports one key calling and two way intercom, guests only need to tap the call button, and the room can respond immediately, and it is convenient and quick to unlock by calling 2、[HIGH QUALITY MATERIAL] Adopt ABS plastic shell, it has bright color, fluent lines, sturdiness and durability, and has a long service life. 3、[HIGH DEFINITION DESIGN] It adopts LCD display with a resolution of 800x480 and high color reproduction, which can clearly show the situation outside the door. 4、[SIMPLE INSTALLATION METHOD] Support wall mounted installation, it can be installed with its own screws, simple and effortless. 5、[WIDE SCOPE OF APPLICATION] You can open and unlock doors through all indoor monitors, which are widely used in apartments, villas, hotels and offices. Item Type: Video Doorbell Monitor Size: Approx. 19.5x13.2x1.5cm / 7.7x5.2x0.6in Doorbell Size: Approx. 13.4x9x4.5cm / 5.3x3.5x1.8in Material: Zinc Alloy + ABS Weight: Approx. 1023g / 36.1oz Output: DC 15V Screen: High Definition TFT LCD Power Consumption: Standby: ≤1W Work: ≤10W Working Temperature: -20-60℃ Monitoring Time: 90s Talking Time: 90s Number of Calling Ringtones: 25 Camera: 700CMOS Super Viewing Angle: 85°-92° Resolution: 800x480 Function: Walkie Talkie, Outdoor Camera, Hands Free, Monitor, Unlock, Adjustable Brightness, Color, Volume Backlight Compensation 1 x Monitor 1 x Doorbell 7 x Expansion Tube 7 x Expansion Screw 1 x Hex Wrench 1 x Screw 1 x Extension Cord 3 x Connection Line 1 x Base Plate 1 x Plug 1 x English Manual