AVA WIRELESS TATTOO GT PEN EP7 Best Quality Guaranteed EP7 Tattoo Pen For Professional Tattoo Artists. Japanese motor Motor: 4 W Material: Aircraft aluminum Frequency: 0-11000RPM Working volt: 4-12V DC Stroke: 3.5mm Charging voltage: 5V/1A Charging time: 3 hours Usage time: 5-8 hours
