Everything you need to setup your Wireless Ring Video Doorbell in just a few minutes, including a screwdriver, mounting bracket, charging cable, security screws, mounting screws, drill bit, spade connectors, wire nets and stickers What use is this kit? If you plan to sell your Doorbell 2 (2nd Generation Wireless) or have lost the screw driver or the cable or the two screws that secure the door bell at the bottom have developed a problem then this kit is what you need. NOT for any other model i.e Wired / Pro.