Feature: 1. LARGE FIELD OF VIEW WIDE ANGLE: 1080P smart HD video surveillance doorbell , adopts 170 degree super large wide angle view, clearly visible from top to bottom, left to right. 2. HIGH DEFINITION NIGHT VISION: Smart video doorbell adopts LED dark scene fill light, which turns on automatically at night and is also visible at night. 4.3 inch clear screen wireless intercom. 3. 8MP HD CAMERA: Smart video doorbell adopts 8MP HD camera, clear picture quality, perfect presentation of the view outside the door. Bluetooth connectivity; Built in speaker and microphone. 4. STRONG ENDURANCE: 1080P video doorbell camera adopts upgraded 800mAh high capacity battery, stronger endurance. Maximum support 256G memory card (not included). 5. EASY TO INSTALL: Wireless doorbell camera requires no internet connection, no wiring, easy to install. Includes mounting accessories (Expansion tube x 6, screws x 6, small screws x 1, adhesive x 2, snaps x 2) Specification: Item Type: Video Doorbell Camera Material: ABS Weight: Approx. 430g/15.2oz Connection: Bluetooth Connection Viewing Angle: 170 Degree Display Screen: 4.3 inches Memory Card: Maximum Support 256G (Not Included) Night Vision Type: LED Auxiliary Lighting Power Supply: DC 5V 2A Format: MJEPG Temperature: -10℃~50℃ Sound Information: Built In Speaker and Microphone Doorbell Battery: 803035 Lithium Battery 800mah (Included) Screen Battery: 602040 Lithium Battery 400mah (Included). Package List: 1 x Screen1 x Doorbell1 x Instruction Manual6 x Expansion Tube6 x Screws1 x Small Screws2 x Adhesive2 x Clip1 x USB Cable