15-12V adjustable voltage with0.1V accurate regulation safer and more reliable. 2Plug directly into the tattoo machine for easy and free operation, eliminating the need for cables, pedals, etc. 32000mAh large capacity, 3-5 hours for a full charge, continuous use for about 8 hours under 8V voltage output. (The specific working time depends on the working voltage) 4LED display allows you accurately see the voltage, remaining power, working time, etc. 5Lightweight and compact, no bad affect on the accuracy of the tattoo.
