The Adjustable Doorbell Holder can be mounted in one of two ways Applicable doorbell models?This Doorbell angle mount compatible with All-new Ring Battery Doorbell and Blink Video Doorbell and Ring Video Doorbell (1/2/3/3Plus/4 generation) and Ring Video Doorbell (2nd Gen)and Ring Battery Doorbell Plus (2023 Release)and Ring Battery Doorbell Pro(2024 Release). (Note: Video Doorbell is Not Included in Package) Bracket Functions: The mount bracket has an adjustable angle function 0to360 to help You can adjust the angle you need so that the doorbell camera can turn on the video recording better in advance. Anti-Theft Video Doorbell Mount The size of the doorbell that can be placed inside is not more than 5.1inches Highx2.5inches Wide x 1.15inches depth. ?Note:No compatibel Eufy Doorbell/WYZE Doorbell/Google Nest Doorbell ? Mounting: The Adjustable Doorbell Holder can be mounted in one of two ways, 1. to the door or wall with the supplied 3M HBV adhesive, 2. with the supplied screws (note: adhesive mounting can only be used on smooth surfaces). What You Get: 1x anti-theft video doorbell mount, various installation accessories, installation instructions. Please feel free to contact us, any problem with received products or installation