Two-way audio This surveillance camera have an intercom audio function so you can scare away any potential intruders or say hello to your guests. IP66 Waterproof Guard Waterproof Guard IP66 weatherproof feature allows you to keep monitoring whenever rain or snow. IMILAB security camera provide 7×24 hours safeguard for your house. With Wireless Gateway One single gateway can support 4 cameras, support Local server (Fast network) and wifi connection. PIR Motion Detection and Alert Heat life entity will triger and wake up the camera, a short video will be upload to cloud to identify if it is a human. 10-30s Recording Support to modify alarm video recording lengths, make sure record complete alarm video. Version Update Keep your camera at its best. Low-Battery Notifications Inform you when battery capacity reaches 20% (Support customization modify)so you won’t miss it.