Powerful Motor: Wireless tattoo machine pen built in strong motor, 4.5 to 12V can be adjusted, suitable for both liner and shader, with high speed up to 12000rpm under 12V. 4.0mm Needle Stroke: tattoo pen with 4 mm eccentric wheel, fully compatible with the motor, so that the machine is always in a low vibration state in the process of operation, the sound is 35‑40 decibels.
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