Description: Brand new and high quality Function: Joystick *Product Introduction This product is a handle with extended buttons for joystick, you can customize the mapping of the button function on the back, support TURBO burst function, plug and play, and give users a different gaming experience. *For key composition It consists of 14 digital keys (,,,,R3,L3,R2,L2,R1,L1,TURBO,SET). *Function setting 1. Press and hold the SET button for 2 seconds, the X light flashes quickly. 2. Press M1 or M2 (press once to switch once), the lights flash slowly in sequence (Flashing sequence: R3L3R2L2R1L1) 3. When the target button flashes, press the SET button, complete the setting. *Note: The handle should also have programming and memory programming functions when it is not connected to Bluetooth compatible state and charging state. *Clear cache: Press and hold the SET button for 5 seconds, the LED light changes from flashing to off. *Memory function: Reinsert the handle and still keep the last programming function. The factory setting has no definition. *Turbo function: Press M12 and Turbo at the same time, the function of the key has Turbo continuously to start the function. Repeat this step to cancel. Specifications: Item Type: Back Button Mount Material: ABS Color: Black Sleep Current: Less than 30uA Working Current: Less than 15uA Power Supply Mode: EXT Wired Connection Working Voltage: DC3.0-3.3V Size: 99.5x57mm Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks Package Contents: 1 x Back Button Mount 1 x User Manual