Korner is a security system for home or apartment that is designed for everyone can use it. Just plug stick into your router and logged into the App; it will set up automatically. Stick tags on the corner of door or window and you’re good to go. Korner will send you alert on your phone if intrusion is detected. It includes 3 tags and 1 stick with first year’s annual fee. This DIY home security system also allows you to set up a circle of friends, family or neighbors to be notified of intrusions.