Features 1、Wireless Smart Doorbell: M3 wireless smart doorbell utilizes low power wireless wifi technology for stable connection and HD video quality. 2、Remote Real Time Monitoring: Equipped with remote real time monitoring function, allowing you to easily monitor the situation at your doorstep from anywhere. 3、Smart Visitor Recognition: M3 smart doorbell features smart recognition function to identify visitors and provide real time alerts, ensuring home security. 4、Long Battery Life: With a 1000mAh lithium battery(built in), M3 wireless smart doorbell ensures long lasting performance for reliable monitoring. 5、High Resolution: Featuring a resolution of 1280 x 720 and a recording range of 5m, M3 wireless smart doorbell catches clear and detailed video footage. Specification Item Type: Wireless Smart Doorbell Material: ABS Battery Type: Lithium Battery Battery Capacity: 1000mAh(built in) Resolution: 1280 x 720 Recording Range: Approx. 5m / 16.4ft Memory Card: Supported(Not include) Package List 1 x Doorbell 1 x Ringer 1 x Manual 1 x Data Cable 1 x Sticker 1 x Accessory