Fearures: 1. Voice Control: Compatible for Google Assistant, Alexa Echo Show for voice control and real-time monitoring. Free your hands. 2. HD Screen: Smart 1080P Full HD video doorbell with advanced features that allow you to see, hear and talk to anyone from your phone. 3. PIR Motion Detection Function: Intelligent PIR motion detection and loop recording, when detecting any movement, the camera will send an alert to your mobile phone, can be monitored at any time. Wherever you are. 4. Remote Visual Two-Way Intercom: Built-in microphone and speaker allows real-time 2 way of discussion and allows you to see, hear and talk with visitors from your mobile phone, tablet, no matter where you are, no matter whether you are doing work or running in the park, you can monitor your door and remotely control it in your app. 5.After-sale Service: If you have any questions, please contact us immediately and we will help you solve it as soon as possible. Specifications: Sensor Device: COMS sensor - GC2063 Pixel: 2 million Lens: 6G wide-angle 2.2mm lens Viewing Angle: Horizontal 120 degrees, diagonal 150 degrees Video Stream: Primary stream 1024*720/15fps; secondary stream 640*360/15fps Standby Time: About 6 months (10 wakeups per day, 30S each time) Day And Night Conversion: Dual filter automatic switching, 850nm infrared, effective distance 5m Support Function: Motion detection, two-way intercom Power Supply: Two 18650 batteries, 4400mAH (built-in) includes: 1 * WiFi Doorbell 1 * USB Plug 1 * USB Charging Cable 1 * Installation Post 1 * English Manual 1 * Screw Kit