EMALLA wireless tattoo battery power supply is made of aluminum alloy frame and high-quality insulating plastic and is compatible with all standard RCA rotary tattoo machines

Easy to adjust the voltage while tattooing, Type-C charging interface

Output short circuit protection, Input double charging protection

Rechargeable Lithium Battery. The capacity of battery pack is 1200mAh. 3.5 hours to be fully charged at above 1A charger and working for 6-8 hours at 8V