1、6-month long standby time, triggers every 10 days for 30 seconds. 7mm long-range 4G camera with 170° wide angle. 2、Easy to set up, comes with an innovative quick-release rechargeable battery pack, so you can charge your doorbell without moving the device. 3、Two-way talk, the WIFI doorbell uses built-in noise-cancelling microphone and speakers, you can see, hear and speak to visitors from your phone, tablet and PC. 4、Day or night, rain or shine, it allows you to take pictures and record videos at any time. The video doorbell protects your home in real-time, no matter where you are. 5、PIR motion detection, get instant alerts when visitors press your doorbell or trigger the built-in motion sensors, they even work when the APP is off or the device is not in recording mode.