Dualshock 4 Back Button Attachment Paddles Replacement for PS4 Controller 2 PCS Rear Extension Keys Black Suitable For Controller.<br> new durable quality.<br> Improve the flexibility of operation and enhance your gaming experience.<br> Function Setting:<br> 1. Long press the SET button for 2 seconds, x light flashes quickly.<br> 2. Press the M1 or M2 ( Pressonce to switch once ) ,lights flashing slowly 1n sequence ( FlashingSequence: x- o - - - R3- L3- - L2- R1- L1 )<br> 3. When the target button is flashing, press the SET button,finish setting.<br> Clear Cache: Long press the SET button for 5 seconds, the LED changes from blinking to off<br> Memory Function: Insert the handle again and still retain the last programming function.The factory default has no definition.<br> Turbo function: Press the M1/2 and Turbo at the same time, the function key has Turbo continuous launch function .Repeat this step to cancel<br> Colour: black<br> Material: ABS<br> Size: 99.5 x 57MM<br> Package Contents:<br> 1 x For Joysticks Rear Button<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.