Programmable: Two programmable and sensitive metal back buttons let you use your finger skills better in competitive games, reducing reaction time, and bring more flexibility. 3.5mm Headphone Interface Design: With a 3.5mm audio interface, Plug in headphones to enjoy the sound effect in the game, eliminate other external noise, and immerse yourself in the game. 14 Mappable Buttons: There are 14 programmable mapping keys (X key, Y key, A key, B key, RB key, RT key, LB key, LT key, R key, L key, cross key), allowing you to map freely to help you win the game. Wired to PC: Install the controller back attachment for Xbox Series handle, You can play PC games with a wired connection to the computer. Easy to Use: The installation is simple and convenient, plug and play. Note 1: Only support Xbox Series Controller, not support Xbox One controller. Note 2: the 3.5mm headphone hole on the controller back attachment and Xbox handle cannot be used at the same time.