ITEM NAME:Game Controller Back Button Attachment for PS4 Turbo Extension Keys Adapter A#S Product Description Description: Controller Paddles Back Button Attachment for Playstation 4 PS4 Joystick Gamepad Turbo Rear Extension Keys Adapter Feature: 1. Function Setting: 1) Long press the SET button for 2 seconds, X light flashes quickly. 2) Press the M1 or M2 (Press once to switch once ), lights flashing slowly in sequence (Flashing Sequence: X, Round , Triangle, Square, R3, L3, R2, L2, R1, L1) and then press the SET key, the corresponding function will be mapped to M1/2. For Example: When entering the programming mode, press the M1 key to display the LED on R1, and then press the SET key again, the LED on R1 will turn on and the function of M1 will be R1; programming M2 is similar to the above. 10 LEDs are used as key function indicators to indicate the function of the programming keys, and up to 2 LED lights can be displayed. 2. Cancel function: Long press the SET button for 5 seconds, the LED changes from blinking to off. Then the M1/2 function is cleared, and the button has no programming function at this time. 3. Programming Button Memory Function: Insert the Back Button Attachment into the handle. If M1/2 has no function, LED1 flashes slowly (2Hz) for 3 seconds and then goes out, long press SET button to enter the programming mode and LED1 flashes quickly. If M1/2 the last programming function is memorized, the corresponding LED will be on. The previous programming function is saved when the power is turned off. Inserting the handle again still retains the last programming function. The factory default has no programming function. 4. Turbo Function Setting: Press and hold the function button and the Turbo button at the same time, the function button has the Turbo burst function. Press the above key combination again to cancel the button Turbo function. If the Turbo function is set, after pressing the button, the LED corresponding to the function flashes quickly (.(Press the above key combination again to cancel the button Turbo function. If the Turbo function is set, after pressing the button, the LED corresponding to the function flashes quickly (4HZ). 2) Press the M1 or M2 (Press once to switch once ), lights flashing slowly in sequence (Flashing Sequence: X, Round, Triangle, Square, R3, L3, R2, L2, R1, L1) and then press the SET key, the corresponding function will be mapped to M1/2.