Instruction:(1234)Expand the button(5) the LED indicator (6) TURBO button The (1234)expansion key factory is the default corresponding to L1,12, R1, R2 After user-defined Settings, the key values of the previous Settings will be saved by default when used next time (no longer the default values of L1,L2, R1, R2).Extend the 10 function keys of A,B,XY,L1,L2,R1,R2,L3 and R3Setting mode: hold down 4 expansion keys for 3 seconds continuously, 2 LED indicatorsenter slow flash, then hold down the handle AB, xyl112. R1R2,13When setting the expansion key on the left, LED1 on the left will flash; when setting theexpansion key on the right, LED2 on the right will flashTurn off the setting mode: hold down 4 expansion keys for 3 seconds continuously, turn off2 LED lights, and turn off the setting mode immediatelyTURBO set mode:1. At the same time, press the TURBO key +A, B, X, Y, L1, L2, R1, R2, any one of thekeys, the indicator will flash, indicating that the currently pressed key has turned on th