Features: 1. 4 speed adjustment of shooting speed can effectively help shooting and help aiming. 2. Buckle fastening, you just need to click on the phone, without affecting the game on the game view. 3. Good compatibility, compatible with Android/IOS smartphones with thickness of 6-13mm. 4. Unique wake up pulse function for easy shooting. No operation after 15 minutes of sleep. 5. The mobile phone game button is made of ABS material, strong and durable. How to use: Fix the button on the mobile phone through the buckle, and adjust the position of the button to the corresponding position. All the key‑key‑uppulsefunctiontoassistshooting. Nooperationafter 15 minutesentssleep Features: Item Type: Game Button Material: ABS+Metal Colour: black. Application: suitable for Android/IOS smartphone with thickness of 6-13 mm. Battery: electronic lithium battery Battery Capacity: 50mAh Product features: 4 speed conversion. Connection method: physical loop Working current: <7mA Standby current: <2uA Package includes: 1 button 1 x Chinese and English Manual 1 x USB cable.