Feature: 1. Wide Angle Lens: This digital peephole viewer with 145° wide angle lens gives you a large field of view to keep your home safe. 2. Clear LCD Screen: This digital door monitor is equipped with a 2.4in super bright TFT LCD screen, using a 32 bit processor and a professional video codec chip, making its image display clear and smooth. 3. 0.3MP HD Camera: Built in high definition camera, up to 640 x 480P, for image acquisition, timely shooting and recording visitor information. 4. 2 Ways of Power Supply: The camera supports two modes of power supply: AAA battery(not included) or power pack, which solves the problem of frequent charging. 5. Easy to Install: You only need a few minutes to complete the installation of the camera, and then it will provide you and your family with extra security. How to Use: Install and use Specification: Item Type: Home Video Doorbell Material: ABS, LCD, metal Screen Size: 2.4in Screen Resolution: 480 x 320 Camera: 0.3MP Viewing Angle: 145° Storage Method: Micro storage card (maximum 32GB)(not included) Support: Manual photography Adapt to Door Hole: Approx. 15-25mm / 0.6-1in Adapt to Door Thickness: Approx. 35-110mm / 1.4-4.3in Battery Type: 3 x AAA Li ion batteries (excluded) Package List: 1 x Indoor Unit 1 x Outdoor Unit 1 x Metal Holder 6 x Screw 1 x Instruction