Compact Wireless Tattoo Power Supply Key benefits Precise voltage control for consistent results: adjustable from 512V in 0.1V steps, with long press for rapid changes. Portable and cord workflow: lightweight, compact design integrates with your tattoo pen to eliminate bulky cords, foot pedals, and extra attachments. Reliable runtime and clear feedback: builtin 1300mAh battery delivers 35 hours of continuous use and an LCD that shows current voltage and remaining battery level. Broad compatibility: standard RCA interface fits most RCA tattoo machines with a secure connection. Primary features Adjustable output: 5 to 12 volts with 0.1V adjustment accuracy to fine tune needle speed and stroke for different tattoo tasks. RCA interface: standard RCA jack ensures stable connection and compatibility with most RCAequipped machines. Battery and charging: builtin 1300mAh lithium battery provides 35 hours of use on a full charge. Input DC 5V 1A and typical charging time about 2 hours. Display and controls: easytoread LCD displays set voltage and remaining battery. Power button for on off and pause restart. Plus and minus keys for precise or fast voltage adjustment. Build and size: durable aluminum alloy housing with electronic components. Compact dimensions approximately 62 x 32 x 32 mm for minimal bulk. How to operate Press and hold the power button to turn the device on or off. Short press the plus or minus key to change voltage in 0.1V increments. Long press the plus or minus key to increase or decrease voltage more quickly. To pause and restart during use, short press the power button. Specifications Item type: Wireless tattoo power Material: Aluminum alloy and electronic components Interface: RCA Battery: Builtin 1300mAh lithium battery Input: DC 5V 1A Output range: 512V Adjustment accuracy: 0.1V Charging time: approx 2 hours Size: approx 62 x 32 x 32 mm Practical use scenarios Line work session: Set precise lower voltages for clean, consistent lines while monitoring battery level on the LCD. Shading and coloring: Quickly boost voltage with a long press when moving from outlining to shading for smoother needle performance. Mobile or event work: Lightweight, cordless setup simplifies transport and setup for guest spots, conventions, or onlocation appointments. This power supply offers precise control, reliable battery life, and compact portability to streamline tattoo workflows without adding unnecessary components.