-Night Vision: Built-in high-quality IR LED lamp beads and light sensor, the image is clear at night; Can also automatically switch from day mode to night mode after the ambient light drops to 2 lux. Strong and stable signal, easy to pair, transmission distance up to 50 meters, adjustable ringtone and volume according to your preference. -Long Standby: No disassembly cycle. Built-in high-capacity lithium-ion battery, long standby. The doorbell is powered by a large built-in battery, no need to charge frequently; And the chimes are powered by USB, easy and convenient to use. -Capture Screen: Cloud storage, safety drop protection. When a visitor presses the doorbell, it can capture the visitor's photo and save the recording to the cloud, so that the mobile phone APP can view past images at any time, which is safer and more secure. - Wireless Video Doorbell Camera: Supports 2.4G Wi-Fi and APP connection, 480P high resolution, brings clearer images and videos and more details. With the