Suitable For PS4 Controller.Brand new durable quality.Improve the flexibility of operation and enhance your gaming experience.Function Setting:1. Long press the SET button for 2 seconds, x light flashes quickly.2. Press the M1 or M2 ( Pressonce to switch once ) ,lights flashing slowly 1n sequence ( FlashingSequence: x- o - - - R3- L3- R2- L2- R1- L1 )3. When the target button is flashing, press the SET button,finish setting.Clear Cache: Long press the SET button for 5 seconds, the LED changes from blinking to offMemory Function: Insert the handle again and still retain the last programming function.The factory default has no definition.Turbo function: Press the M1/2 and Turbo at the same time, the function key has Turbo continuous launch function .Repeat this step to cancelColour: blackMaterial: ABSSize: 99.5 x 57MMPackage Contents:1 x For PS4 Joysticks Rear ButtonOnly the above package content, other products are not included.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.