Equipped with high strength adhesive and complete expansion screw set, allowing easy mounting on smooth glass, tiles, metal, or decorative panels, and screw fixing on rough concrete or bare Includes angles bracket, positioning drilling template, various screws, expansion plugs, and strong adhesive sheets, with step by step illustrated guide for both adhesive and drilling methods, enabling single person 5 minutes assembly without modifying existing door structure Features a dedicated adjustable bracket that enables fine tuning of the doorbell tilt angles, solving low original camera perspectives and blind spots at the entrance, capturing full visitor body without modifying door openings Precisions molded backplate with fit design perfectly mainstream for video doorbells, ensuring smooth installation and removal without loosening, avoiding sensors, lens, or button obstruction, maintaining all original doorbell functions Adhesive version supports static load up to 2KG, long term sun and rain exposure; whole bracket hard engineering ABS, Manufacturer: APGLSXY