Description: 1. [Scalable and Reversible] : The game controller trigger is a scalable and reversible front button gesture controller. The game joystick is flame-retardant, delay-free and very comfortable to use. 2. [Reliable Protection] : The game controller trigger can be reliably fixed on the mobile phone, providing excellent protection for your phone. Soft EVA and silicone are used in many places for game joysticks to emphasize. 3. [Minimum Delay] : To better simulate human finger touch data, we will apply mapping to game triggers to quickly aim and shoot enemies. 4. [Plug and Play] : Just press with your finger to make the contacts of the game controller trigger fit perfectly with the phone screen, and you can start playing immediately. 5. [Portable] : The game controller trigger is compact in size and easy to carry. The game joystick is lightweight and portable, takes up very little space and is easy to store.