Amazon.com: DRILI Paddles for PS4 Controller, Back Button Attachment for PS4 Controller : Video Games
Playstation 4 Controller Button | Playstation Accessories | Ps4 Controller Buttons - Accessories - Aliexpress
Amazon.com: 【2021 Upgraded Version】 Wireless P4 Controller with 3 Programmable Back Buttons and 1 Sensitivity-Control Back Button, Game Controller Remote with Turbo/Gyro/HD Dual Vibration/Touch Panel/LED : Video Games
PS4 controller attachment adds customizable buttons to the back
PlayStation 4 Controller Buttons - A Beginner's Guide - Gamercreatrix
Multi-Colors Luminated D-Pad Thumb Sticks, Face Buttons, DTF LED Kit, 7 Colors 9 Modes with Classical Symbols Buttons for PS4, PS4 Pro, PS4 Slim- Controller NOT Included - Walmart.com