Dr. pen M8 - Needle Length and Speed Adjustment

2.5
0
0.25
0.5
0.75
2.0
Speed Display
How to operate
6 Speeds Adjustment
The pen starts from low to high speed
The speed changes once each time you press
the button
Adjust the depth of needle by turning the scale
adjustment ring
Turn it clockwise,needle depth will be shorter
Turn it counterclockwise,needle depth will be longer
Adjustment of needle length
Counter ClockwiseClockwise
The depth will be longer
The depth will be shorter