Wireless tattoo power supply designed for precise control and reliable operation. Key features Adjustable voltage: 3 to 12 V range with 0.1 V accuracy for fine tuning between lining and shading. LED display: clear readout of the current voltage for quick, accurate adjustments during work. Stable interface: standard connector ensures a tight, secure connection that resists accidental detachment. Long runtime: builtin 1500mAh lithium battery delivers 4 to 8 hours of continuous use when fully charged. Functionality: suitable for both lining and shading workflows. Why this product helps Precision control reduces guesswork and makes it easier to set consistent voltage for different needle groupings and techniques. A secure interface minimizes interruptions caused by loose connections, allowing sessions to proceed smoothly. Extended battery life supports longer sessions or multiple appointments without frequent recharging. The LED display provides immediate feedback so adjustments can be made on the fly with confidence. Compatibility and performance Designed to work with tattoo equipment that uses a standard interface connection. Voltage accuracy of 0.1 V supports fine adjustments required for detailed work and smooth shading transitions. Wireless operation provides the flexibility to work without a tethered power source. Typical use scenarios Studio sessions: Maintain consistent voltage across multiple pieces in a single appointment, switching easily between lining and shading. Onlocation work: Portable power and long runtime make it suitable for guest spots, conventions, and remote jobs where access to outlets may be limited. Practice and training: Reliable voltage control and visible readout help students and professionals refine technique during extended practice sessions. Practical notes Voltage range and accuracy are intended to support a wide variety of tattoo techniques. The standard interface is intended for compatibility with equipment that accepts standard connectors.