CNC Controller:Integrated function keys including emergency stop, , spindle on/off and so on High Efficiency:The controller has all commonly used functions for Mach operation, and can move both axles simultaneously Easy to use:No need to install any software or drive, connected by USB port and the cable can be stretched to about 3 CNC Engraving Machine Manual Controller:12 x 12mm buttons that your finger will not interfere with the adjacent buttons Specifications: Compatibility: For only Connector: USB Size: 22.2 x 8 x 5.6cm/8.7 x 3.1 x 2.2 in : Metal colour: black Package Contents: 1 x CNC Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.