2-Way Audio & HD ViewDoorbell camera wireless has built-in microphone and speaker. Door camera provides two-way talk and real-time video through noise reduction & rate adaptive technology. It allows you to have clear real-time communication with your visitors via your smartphone at anytime, anywhere, and give permission for your visitors or even drive away uninvited guests. Wide-angle advanced glass lens combined with HDR and distortion correction image and offers wider coverage. PIR Motion Detection & Motion and Human DetectionDoorbell camera can respond quickly with the upgraded PIR motion sensor. Once motion is detected, your phone will get an alert notification push in time, just open our smart APP to check quickly what is going on or play back the videos of the movement events later. Our wireless door bell has 3 adjustable to easily distinguish among human, animals or swaying branches. You are not bothered by frequent alerts. Clear Night Vision & Multi-user SharingAdvanced night vision with 6 built-in 850nm infrared LED beads extend the viewing distance to 16ft in pitch dark with no light pollution. Day and night vision are automatically switched according to light changes. Door bell cameras wireless uses the Aiwit App, which supports 1 main account and 8 shared users. You can also add multiple cameras in the same account. Easy to share the happiness of life with your family. 2.4GHz Stable WIFI & Convenient Cloud Service wireless doorbell camera only supports 2.4GHz WIFI (NOT SUPPORT 5GHz), please use high-speed stable Wi-Fi, then video camera can up and run in minutes. Wireless doorbell offers subscription plan included 30-day free Cloud service,with access to latest 14 days videos. No need to worry about losing the videos, or someone stealing your hardware, because you've got everything safely saved in cloud storage. IP65 Weather Resistance & Easy to Installwireless doorbell is certified for IP65 dustproof and waterproof. Wire-free design saves you from cable hassle,you can just mount it at any spot you like.The Aiwit App is available in Google Play/App Store. Take only a few minutes,to easily set the door camera up in Aiwit App.There are two fixing methods:1. Use double-sided tape(attached to the back plate bracket) to directly stick to the wall/door; 2. Use matching screws to perforate and install.