Features 1、3.97inch Front Door Viewer: This smart doorbell camera comes with a 3.97 inch HD LCD screen, providing crystal clear images. The built in PIR motion detection ensures accurate alerts and enhanced security. 2、Ultra Wide 135° Viewing Angle: With a superior 135° wide angle lens, you can easily see from head to toe of the visitor and know exactly where your package is placed. The night vision function allows you to see clearly even in the dark. 3、HD Camera: Boasting a 1080P resolution, this door viewer allows you to see every detail in the image. It supports door holes ranging from 15 to 30mm and door thickness from 35 to 80mm. The powerful infrared night vision ensures clear visibility at night. 4、Multiple Functions: Equipped with PIR motion detection, automatic video recording and sound recording, this camera offers versatile features. The dual camera pixels of 1080P and internal storage of 720P provide video playback. With adjustable focus and more. 5、Smart Recording and Storage: Supporting visitor voice recording, automatic photo catch, and video message functions, this doorbell camera conveniently stores visitor portraits. It allows you to view visitor videos and messages anytime, anywhere for added security. Specification Item Type: Video Doorbell System Material: ABS Screen Size: Approx. 3.97 inches / 10.08cm Screen Resolution: 480 x 800 Camera Resolution: 1080P Internal Storage: 720P Camera Pixels: 2MP Wide Angle of View: 135 degrees Infrared Lights: 2 Storage Method: Micro storage Card (supports memory cards above 8G, recommended 16g, 32g) (memory card not included) Supported Languages: English, Chinese, Russian, French, Italian, German, Japanese, Korean, Czech, Turkish, Arabic Adapted Door Hole: Approx. 15 to 30mm / 0.59 to 1.18in Adapted Door Thickness: Approx. 35 to 80mm / 1.38 to 3.15in Battery Type: 3.7-4.2V 1400mAh lithium ion battery (built in battery included) Charging Port: Type c Package List 1 x Main Unit 1 x Camera 1 x USB Cable 1 x Mounting Bracket 6 x Screws 1 x English Manual