[High Compatibility] Our mobile gaming controller for iPhone and Android phones can be clipped onto devices with a thickness of 0.24" to 0.45". Note: If you need to wear a phone case to use the trigger, the total thickness should not exceed 0.45 inches. Mobile gaming triggers supports PUBG Mobile, Call of Duty Mobile, Fortnite Mobile and other shooter mobile games. [Ergonomic Design] The buttons of this smart phone game controller are made of zinc alloy, and by increg the area of the buttons and adjusting the angle of pressure, also using ergonomics to optimize the environment for long gaming sessions. Effectively relieves long grip fatigue, so you will not feel tired after long hours of gaming. It also substantially improves the problem of sweating and slipping, as well as poor heat dissipation. [Preventing Accidental Touch] Cell phone gaming triggers with notch design, the space of the notches will allow you to avoid accidentally touching the keys on the side of the phone while playing, and will also prevent the side bezel from scratching. The notch design is effectively compatible with tempered film and thickened cases. The contact surface where the screen is clamped adds two silicone soft pads that will prevent your screen from being scratched. [0 Latency Physical Mapping] BIGBIG WON Mobile Triggers using copper-silver alloy wire and conductive media combination scheme, effective reduction of environmental magnetic interference, shooting and aiming very sensitive without delay, allowing you to get a very good game performance. Easy to use, no need for power and drive. The PUBG mobile controller is designed with mechanical micro switch, the life of each button is more than 5 million times. [Clip-on Mobile Game Trigger] Our all-in-one mobile game triggers features a unique clip-on design with two zinc alloy buttons that allow your left and right thumbs and index fingers to move, angle, aim and shoot at the same time. At only 0.067 lbs, and 5.31" * 0.63", you can easily take the mobile game controller with you on trips or parties.