【Smart Visual Doorbell】 Features a 4.3-inch color display for clear visitor identification and video intercom functionality 【High-Definition Night Vision】 Equipped with a 30W pixel camera and infrared technology for crisp, clear images even in low-light conditions 【Wide-Angle Coverage】 130° wide-angle lens ensures comprehensive coverage of your entryway 【Visitor Snapshot】 Automatically captures images of visitors when they press the doorbell button 【Long Battery Life】 Doorbell unit lasts up to 3 months on a single charge, with over 1 year of standby time Specifications: Material: ABS, PCBA, polymer battery, speaker, camera, hardware Battery Capacity: Doorbell 800mAh, Display 400mAh Power Input: 5V?1A Charging Time: 1.5 hours Storage: Supports up to 128GB external TF card Display Size: 4.3 inches Camera Resolution: 640*480, 30W pixels Doorbell Dimensions: 140mm*58.6mm*30.5mm Display Dimensions: 125mm*99.6mm*22mm Weight: Doorbell 120g, Display 159g, Total 280g