Double Back Button Handle Back Clip Rear Back Button Programmable Custom Mapping Burst for Gaming Controller Accessories Features: 1. This product is a double back clip button specifically designed for use with the original gaming controller, enhancing it to an elite status, significantly improving the gaming experience. Compatible with certain controller models. 2. Supports Turbo burst function with three-speed burst setting, allowing for hands-free gameplay and making the game easier. 3. Compatible with L1/L2/R1/R2/¡õ/¡÷/¡ð/X/cross keys on the controller. A total of 12 function keys support the mapping function. Mapping function: The mapping function allows setting for L1/L2/R1/R2/¡õ/¡÷/¡ð/X/cross keys on the original gaming controller, comprising 12 function keys. ¢Ù Short press the 'mapping' button; the light bar will remain orange, indicating that the button mapping function can be set. ¢Ú Press and hold one of the back clip buttons and any function key of the controller for 1 second simultaneously; the light bar will flash orange three times and then stay on, indicating that the back clip key mapping setting is successful. ¢Û After completing the setting, short press the 'mapping' button again; the orange light bar will turn off, exiting the mapping function setting. At this point, you can normally use the back clip button to play the game. Burst function: The burst function can be assigned to any back clip button and supports three-speed burst speed adjustment. ¢Ù Short press the 'Burst' button; the blue light bar will stay on, signaling that the button burst function can be set. ¢ÚShortly press one of the back clip buttons; the burst speed will cycle through 'slow-fast-ultra-fast-off,' indicated by the blue light bar flashing accordingly. ¢Û After completing the setting, short press the 'Burst' button again; the blue light bar will turn off, exiting the button burst function setting. You can then use the back clip button to play the game normally. Note: The mapping setting and burst setting cannot be performed simultaneously; one setting must be disabled before entering the other! Clear reset: Press and hold the 'Mapping' and 'Burst' buttons for 2 seconds simultaneously; the blue and orange lights will illuminate together for 2 seconds, indicating that all button settings have been successfully cleared. Memory function: After the product is powered off, the mapping function is saved, but the burst function is not retained; the last mapping function is used by default upon the product being turned on again. The burst function will need to be reset. Package includes: 1* Back build 1* User Manual 1* Accessories package