Features:<br>【Long Standby】No disassembly cycle charging. Built-in lithium-ion high-capacity battery, long standby.<br>【Video Call】Easy to deal with visiting guests, when someone presses the doorbell, the doorbell will push notification to the phone, and the owner can enter the phone video conversation interface.<br>【Portable Installation】Can be pasted and perforated. Support adhesive backing, no need to punch holes, while supporting hole punch installation. No plugging, convenient and hassle-free.<br>【Capture screen】Storage to the cloud, security protection drip. When a visitor presses the doorbell, it can capture the visitor&#39;s picture and save the record to the cloud, so that the cell phone APP can view the past pictures at any time, which is safer and more secure.<br>[Wireless Video Doorbell Camera] Support 2.4G WiFi and APP connection, 480P high resolution, presenting you clearer pictures &amp; videos and more details.<br>[ 2-Way Audio] With built-in mic, you can see and talk to your visitors at anytime and anywhere. <br>[Night Vision] Built-in high-quality IR LED lamp beads and light sensor, the picture is clear at night; also can automatically switch to night mode from day mode after the ambient light drops down to 2 Lux.<br>[Equipped with Doorbell Chime] Strong and stable signal, easy to pair up, transmission range up to 50 meters; ring tones and volume can be adjusted according your preference. <br>[Power Supply] The doorbell is powered by built-in large battery, no need to charge frequently; and the chime is of USB power supply, easy and convenient for use.<br><br>Specification:<br>Name: Smart doorbell<br>Material: ABS plastic electronic components<br>Color: White<br>Max. Resolution: VGA, 640*480<br>Video Coding Standard: MJEPG<br>Audio Coding Standard: G711.A<br>Video Frame Rate: VGA&#64;20fps<br>Day/ Night Mode Switch: Automatic<br>Video Transmission Encryption: AES<br>Radio Frequency Coding: EV1527<br>Infrared Lamp Control: Automatic, adjustable sensitivity<br>Infrared Lamp Wave Length: 850nm<br>Motion Detection: Automatic, adjustable sensitivity<br>Connection Mode: 2.4G WiFi<br>Working Temperature: -10&#xff5e;45℃ <br>Working Humidity: ≤95%<br>Doorbell Battery Capacity: 1000mAh<br><br>Package list:<br>1*Smart doorbell<br>1*Usb Cable<br>1*User Manual<br>Some Screws<br><br>