-Motor: 4.5 W Taiwan Motor
-Operating Voltage: 7–12V DC
-Rpm range Stitches/Sec:8V-8000rpm,min 8-800/sec
-Stroke: 3,5 mm
-Needle Protrusion: 0 - 4,5 mm
-Connection: DC 5.5 Jack plug cable
-Package including: 1 Hybrid Tattoo Pen,1 Connection Line,1 Jack plug adaptor,1 needle cartridge.
Please keep the pen working under 12V to protect the rotary system and the motor.