1Adjustable Voltage: Wireless tattoo power supply offers a voltage range of 512V with a precision of 0.1V, allowing tattoo artists to adjust the speed according to different areas of tattooing. 2RCA Interface: Equipped with a standard RCA interface, it is compatible with all standard RCA rotary tattoo machines, ensuring a secure and stable connection. 3Efficient: Say goodbye to the constraints of traditional power supplies that require multiple accessories. Power supply eliminates the need for power cords, foot switches, and clip cords, making it more convenient for tattoo artists to work. 4Long Battery Life: With a built in 1500mAh battery, it can work continuously for 36 hours when fully charged, making it suitable for large scale tattooing. 5LCD Display: Power supply features an LCD display that shows the current voltage and remaining battery power, allowing tattoo artists to easily observe and operate. It also has shutdown, overcharge, and over discharge protection functions. 6Portable: Designed to seamlessly integrate with your tattoo pen, this power supply is lightweight and compact, making it easy for tattoo artists to carry and operate.