Mini LCD Wireless Tattoo power supply RCA DC Connector for Tattoo Pen Machine

Product Features:

1. Voltage Adjustment - Operates at 5-12V with 0.1V precision control. Clear display 

2. Long Battery Life - 2000mAh high-capacity battery supports 6-8 hours of continuous use (at standard voltage). 

3. Memory Function - Automatically saves the last voltage setting. LCD screen shows voltage, battery level, and timer. Hold +/- buttons for quick adjustment.

4. Strong Start - Delivers a 9V boost within 0.1s of startup to power low-torque machines (brief loud sound before normal operation).