the back of a ps4 controller

What is this hole for in the controller
Belt Road 2020 latest style PS4 Elite PS4 Slim Pro Controller – GamingCobra PS4 DualShock 4 Back Button Attachment Sony PlayStation DualShock 4 Back PLAYSTATION PS4 CUSTOM BACK OF PS4 controller attachment adds PlayStation 4 DualShock 4 Back Button DualShock 4 Back Button Attachment PS4 PRO Modded Controller - XMOD 4 Back Sony DUALSHOCK 4 Back Button Attachment Ps4 Controller Wave Blue Back Shell Sony DualShock 4 Back Button Attachment Upgrade Kit for PS4 Controller JDM-040 DualShock 4 Back Button Attachment How to resync a PS4 controller Back Buttons K1 K2 K3 K4 Paddles Repair Sony Dualshock 4 Back Button Attachment How to Reset a PS4 Controller Amazon.com: Nyko Trigger Back Button 3D Grip White (GEN 4, 5) - PS4 Ps4 Controller Magma Red Back Shell PS4 Slim PS4 Pro CUH-ZCT2 Controller PlayStation DualShock 4 Back Button PS4 Controller Achort Playstation 4 PlayStation 4 DualShock finally has PS4 Controller Back Button Attachment SONY PS4 Controller PS4: Dualshock 4 Back Button Attachment Back Button Attachment works on iOS Playstation PS4 Dual Shock Controller PS4 Controller Colors Are Back In Stock Polished Pink PS4 Controller - The PS4 Modded Controller, Remap Elite PS4 DualShock 4 Back Button Attachment Black Textured Non-slip Back Shell For We tested the PS4 back button

North Korea Just Launched Another Missile the back of a ps4 controller Man Throws Rotten Pork Meat At Mosque In Hate Crime the back of a ps4 controller After Russia's Putin, Erdogan Will Meet With Belarus’s Lukashenko the back of a ps4 controller Iraq’s Interior Minister Resigns as Baghdad Death Toll Reaches 250 the back of a ps4 controller

the back of a ps4 controller Gold White Black Red Blue Beige Grey Price Rose Orange Purple Green Yellow Cyan Bordeaux pink Indigo Brown Silver