Format Button Press this button to format Micro SD card
Storage formats Choose Storage formats. LCD will display JPG/PDF
Scanning LED indicator Scanning ready:LED indicator light is green
Power/Scanning Power on/off: hold down this button 2 seconds ,then turn on power or shut off the power.After turn on the power, push down this button to scan Then press this button to stop the scanning
Power source 2 x AA batteries High/Mi/Low Resolution Mode Icon will display on LCD.
LCD Scanning status display
Correct LED indicator When over-speed,LED indicator light is red