HONG Video Doorbell, HD Intercom Smart WiFi Doorbell Wireless Access System for Door Camera with Two Way Communication, Convenient

MOTION DETECTION AND SMART PIR ALERTS: The video doorbell contains a built-in PIR motion sensor that can detect any movement in front of the door. You will receive a push notification on your phone if someone passes. You can check for suspicious activity at any time, even if you work in the office, shop at the mall, or travel far away on vacation. HD & BIDIRECTIONAL COMMUNICATION: High definition camera with 166 degree wide angle, provides a clear and wider view. Two-way communication, with noise cancelling function, convenient to use. MOTION DETECTION AND NIGHT VISION FUNCTION: Day and night modes switch automatically, no matter day or night, the picture is clear enough. EASY TO INSTALL AND USE: 2.4G wifi connection, easy and convenient to use and use. Support mobile phone remote control, quickly wake up the device in 1 second. LARGE CAPACITY BATTERY: AC input, 3 batteries of 18650 specification, longer battery life, reliable to use.