Dip&Dab 2-in-1 Wax Pen 510 Threaded Preheat Battery Pen - KDP00011. Battery Capaity: 400mAh2. 3 Variable Voltages: 3.2V- 3.6V- 4.0V3. Latest Quartz Coil Heating Technology4. 510 Threaded Battery Work with all5. Glass Mouthpiece