Features:* Form and Function - Forget the hassle of charging the battery by directly connecting the video doorbell ring to the power adapter. The long 5m cable can be set up in minutes.*Continuous Charging-You can now let your doorbell run continuously without having to remove it to replace the battery. This enables uninterrupted operation and on-demand viewing.*No battery drain--Our power adapter allows you to keep your doorbell always in order. No more downtime and interruptions due to empty batteries.* To solve the "low battery" problem* Run 5 meters of wire along the wall from the outlet to the doorbell.* Easy to install: simply connect the 2 copper wire ends to the screws on the doorbell bracket. Specifications:* Name: Power Adapter for Video Doorbell* Color: Black* Input: AC 230V 50Hz* Output: AC 18V 500mA 9W* Wire Length: 5mPackage Contents:1 * AdapterNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.