The Wireless Battery Pen is a system designed for make easy tattooing
Can keep working for about 5 hours at least,depending on personal usage
The voltage,battery level and usage time will be shown through the LED display
The voltage can be adjusted through button (+) and (-) respectively with the voltage of 0.1 V on each press
PRICE includes 1pcs Wireless Battery Pen, 4pcs Pen Grips&1pcs USB Charging cable