· Plug your Ring Battery Doorbell into a standard indoor outlet for 24/7 power and protection, even if your home doesn’t have existing doorbell wires.· Plug-In Adapter installs in minutes and keeps your doorbell powered without hardwired installation or taking batteries out to recharge them. Insert the doorbell’s rechargeable, Quick Release Battery Pack. Plug-in Adapter will keep the battery inside the doorbell charged.· Includes a 10-foot cable with clips and comes with built-in short circuit protection.· Connects to standard indoor power outlets only.· Works with Video Doorbell Wired, Video Doorbell (1st Generation), Video Doorbell (2nd Generation - 2020 Release), Video Doorbell 2, Video Doorbell 3, Video Doorbell 3 Plus, Video Doorbell 4, Battery Doorbell, Battery Doorbell Plus, Video Doorbell Pro, and Video Doorbell Pro 2. Not compatible with Peephole Cam or Video Doorbell Elite.· Power input: 100-240V AC, 50/60Hz, 0.5A / Power output: 24V DC, 0.5A, 12.0W· Dimensions: 2.8in (7cm) x 2.2in (5.5cm) x 1.5in (3.7cm)