A WiFi connected chime that can be plugged into a standard wall outlet and paired with a UniFi Protect doorbell. This device is ideal for homes without a wired chime system or one that is incompatible with their Protect doorbell. Managed with the UniFi Protect application: Version 2.0 and later (web) / 1.6.2 and later (iOS) / 1.6.0 and later (Android)