Our offline control baord only suitable our control baord,in order to you can choose suit you product,please confirm with customer service before placing an order,wishing you a happy shopping! The duty cycle of PWM pulse frequency is adjustable, short press the main page Z+, Z- Laser-power/spindle speed Short press the EXIT, the maximum spindle speed is 1000/10000 switch (the speed when PWM is set to 100% duty cycle) Y+Unlock Y-return to zero Z+Chinese and English switching Can control four-axis XYZA axis Supporting files: NC, NCC, TAP, , Gcode, GCO, NL, CUT, CNC File page turning: Short press X+/ X- on the File page Built-in battery time adjustment Free 128MB memory card Support /TF memory card Press Z+ for 5 seconds: Change the Language to English. Press SMOD: return. card: card reader is to write into the root directory G-code files . Material:ABS colour:black Package Contents: 1 x 1.8 inch offline control board 1 x TF card 1 x cable Only the above package content, other products are not included. Note: Light 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.