ROKYO CR07 Wireless Tattoo Pen

180° wide-angle HD color display
Material: space aluminum alloy
Needle Strokes: 2.4mm, 2.7mm, 3.0mm, 3.3mm, 3.6mm, 3.9mm, 4.2mm
Motor: Custom Coreless Motor.
Display Size: 1.47inch
Motor Speed: 12V - 10500RPM
Single Battery Capacity: 2000mAh
Charging time: about 2 hours
Operation time: about 5-6 hours
Output Voltage: 4V-12V
OLED display content: output voltage range  +  battery usage + working time + HZ
Recommended working voltage: 5.5V-7.5V