Instant Notifications: Video doorbell with enhanced features that let you see, hear, and speak to anyone from your phone, tablet, or PC. Receive instant push notifications when Video Doorbell is pressed so you know the moment someones at your door. Rechargeable doorbell built-in 800 mAh battery capacity. Support Multi-user Sharing: Door bell cameras Wireless uses the X Smart Home App, which supports 1 main account and multiple shared users. You can also add multiple cameras in same account. Easy to share life happiness with your family. 2.4GHz Stable WIFI: Wireless doorbell camera only supports 2.4GHz WIFI (NOT SUPPORT 5GHz),please use high-speed stable Wi-Fi, then video camera can up and running in minutes. Easy setup. Visual doorbell with voice change function, can effectively protect when there is no adult at home when the children use the voice change function to communicate, improve safety. 2-Way Audio & HD View: Doorbell camera has built-in microphone and speaker. Door camera provides two-way talk and real-time video through noise reduction & rate adaptive technology, and allows you to have clear real-time communication with your visitors via your smartphone at anytime. 38 doorbell music included, you can change your favorite music at will. Clear Night Vision: Advanced night vision, 850nm infrared fill light extend the viewing distance to 4ft in pitch dark with no light pollution. Day and night vision are automatically switched according to light changes. Wire-free design saves you from cable hassle, you can just mount it any spot you like. Take only a few minutes, then you can easily set the door camera up and mount it up at door. Use double-sided tape(attached to the back plate bracket) to directly stick to the wall/door.