V7 Wireless WIFI Smart Visual 1080P Doorbell 18V AC Power Adapter Transformer Charger 220V-240V For Wifi Smart Video Doorbell IP Camera Video Intercom Door Bell Ring 18V AC Power Adapter Transformer Charger Specifications Name:Power supply adapter for video doorbell Cable Length:5M Color: Black Input: AC 230V 50Hz AC 230V 50Hz AC 120V 60Hz Output: AC 18V 500mA 18V AC Power Adapter Transformer Charger Features - To solve the problem of "Low batter". - Run the 5 meters wire along the wall from the outlet to the doorbell. - Easy to installation: Just connect the 2 copper wire tips to the screws on the bracket of the doorbell. Only sell the doorbell in the picture, the rest of the goods are for reference only and not for sale