Start voltage: 2-3 V
Operating Voltage: 9-12V
Rpm range Stitches : 7122 rpm/min/8V and 8916 rpm/min/10V and 10700 rpm/min/12V
STROKE LENGTH: 4.5mm
SUSPENSION STROKE: 1-5mm
Package including: 1 rotary tattoo machine，1 DC5.5 connection line.
The machine can use for liner and shader, you can adjust by yourself.
Note:Please keep the machine woking under 12v to protect the machine motor.