Gain instant alerts when visitors arrive at your home with the eufy’s add-on Chime, designed for the Video Doorbell E340. Receive instant app notifications when a guest or delivery person rings the doorbell or motion is detected at the door. Customize the volume and select from 8 chime options while installation is a breeze. Simply plug the chime into a wall outlet, connect to your 2.4 GHz Wi-Fi network then follow the app prompts. *This chime is compatible with eufy wired doorbells. It is not compatible out of the box with battery-powered doorbells nor outdoor cameras. You may connect it to a battery-powered doorbell if you also utilize a eufy HomeBase 2 or HomeBase S380 (HomeBase 3), as well as a USB dongle.