![Rear Controllers Strike Pack Adapter Back Button With Mods Extended Turbo Function For Ps4 Slim, Pro Controllers - Accessories - AliExpress Rear Controllers Strike Pack Adapter Back Button With Mods Extended Turbo Function For Ps4 Slim, Pro Controllers - Accessories - AliExpress](https://ae03.alicdn.com/kf/Hb8c08b243c6445ab9f5cfa97ac8866349.jpg)
Rear Controllers Strike Pack Adapter Back Button With Mods Extended Turbo Function For Ps4 Slim, Pro Controllers - Accessories - AliExpress
![I got this controller with a used ps pro at GameStop, it had a button on the back that turns on a green light on the lightbar, anyone have any idea as I got this controller with a used ps pro at GameStop, it had a button on the back that turns on a green light on the lightbar, anyone have any idea as](https://external-preview.redd.it/EzgNnoZOuzT2wuOB5mybyNbZ9IlFMvavMWWM2fq4CUI.jpg?width=640&crop=smart&auto=webp&s=f6619fb644a2b448f7a99b45835eae599bba6d9b)
I got this controller with a used ps pro at GameStop, it had a button on the back that turns on a green light on the lightbar, anyone have any idea as
![Gamepad Back Button Attachment Dual-shock4 Joystick Rear Buttons Extension Keys With 3.5mm Jack For S-o-n-y Ps4 Accessories - Accessories - AliExpress Gamepad Back Button Attachment Dual-shock4 Joystick Rear Buttons Extension Keys With 3.5mm Jack For S-o-n-y Ps4 Accessories - Accessories - AliExpress](https://ae04.alicdn.com/kf/H55380bbb7ae24f47aa4b17994d816131n.jpg)