Feature:1. 4‑speed adjustment of the firing speed can effectively assist shooting and assist in aiming.2. Buckle fixing, you only need to click the phone in, without affecting game the view of game.3. Good compatibility, fit for Android/IOS smartphones with a thickness of 6-13mm.4. One‑key wake‑up pulse function to assist shooting. No operation after 15 minutes goes to sleep.5. The mobile phone game button is made of ABS material, which is strong and durable.How to Use:Fix the button on the mobile phone through the buckle, and adjust the position of the button in the corresponding position. Any one‑key wake‑up pulse function to assist shooting. No operation after 15 minutes enters sleep.Specification:Item Type: Game ButtonMaterial: ABS+MetalColor: BlackApplication: Fit for Android/IOS smartphone 6-13mm / 0.24-0.51in thicknessBattery: Lithium Electronic BatteryBattery Capacity: 50mAhProduct Features: 4-Speed ConversionConnection Method: Physical BuckleWorking Current: <7mAStandby Current: <2uA Package List:1 x Button1 x Chinese and English Manual1 x USB Cable