<p><b>Stigma wireless battery power supply pen</b></p> <p><b>Features</b><br></p> <p></p> <p></p> <p>Starting voltage: comes with 12V instant strong start function</p> <p>Effective needle length: 3.0mm </p> <p>Adjustable stroke: 1.0-4.0mm </p> <p>Appearance process: fine sand black/red</p> <p>Input interface: RCA</p> <p>Battery capacity: 2000mAh (usually available 7h, 2.5h for charging) Adjustable voltage: 5.0-13. 0V DC. </p> <p>Functions: 1. The machine screen displays three data of current-voltage, remaining power ratio and boot time, and the three data are scrolled; </p> <p>2. The set comes with 5 types of handles, can be select according to actual use; 3. Rotation and speed. </p> <p>When the handle adjusts the length of the needle, the card needle port will not turn.</p> <p>Motor: 26 * 7.0 shaft length 7.0mm in motor specifications</p> <p>Rated voltage 12V</p> <p>10W rated power</p> <p>8V speed.7000RPM.</p> <p>10V speed 8750RPM</p> <p>12V speed 10500RPM</p> <p>Five different controllers and a USB-to-Android data charging cable.</p> <p>One year guarantee.</p>