About This 1. [Doorbell screwdriver] : CYJJZQ universal blue screwdriver, suitable for various types of doorbell, including video doorbell, video doorbell 2 doorbell 3 doorbell 4 doorbell Plus and Doorbell Pro & Elite, professional edition, elite edition. In short, if you lose your original screwdriver, this replacement will work better for you. 2. 【20Pcs Ring Doorbell Screws】:CYJJZQ 20pcs of 4 type doorbell replacement screws,T6 (short), T6 (long), T15 (short) and T15 (long), 5 pieces for each type. The screws are made of industrial hardened carbon steel. 3. [screwdriver application]: CYJJZQ It can be used to tear down doorbell for Battery Chang, Charge & Replacement as Well as Password Reset Access. It also can be used to take apart folding knives. [Double-end Bit]: This doorbell screwdriver include a double-end screwdriver bit which can be used all R doorbells tear down. 4. [Double-headed screwdriver] : CYJJZQ Double-headed T6 and t15 screwdriver for doorbell, double-headed dual-purpose, easy to convert. 5.CYJJZQ Focus on better products to give customers the best experience. Should any questions, don't hesitate to contact us. Our service team will reply you with satisfied solution. Overview Brand : CYJJZQ Connector Type : USB Type C Cable Type : USB Compatible Devices : Doorbell 2, Doorbell 3, Doorbell 4, Doorbell Elite, Doorbell Plus, Doorbell Pro, Ring Doorbell Special Feature : Magnetic