| HELIBO | 15 Seconds Rapid preheating L0 Preheating Battery with 3 Adjustable Voltages
1.Push Button 5 times quickly to turn on and off.
2.Rapid preheating, push button twice and coil will pre-heat in just 15 seconds
3.A-class PE battery core. 400mAh large capacity and lasting life.
4.ST Smart chip inside, with safety protection
5.Supports quick charging, full charge only 40mins.
6.Three variable voltage settings push button 3 times quickly to change
green 2.6V, blue 3.3V, violet 4.0V）