Powered by dual 18650 batteries, the Smoant Charon Adjustable VV Box MOD supports a maximum 218W output power. With this VV box mod, you can rotate the knob to adjust the voltage of 5 levels from 3.4V-6.7V. The bigger fire button allows for an easy operation to occur. Covered by high quality leather, the Charon Adjustable is soft and comfortable in hands. Compact yet functional, the device also features low resistance protection, temperature protection, over-current protection, 10s overuse protection and battery reverse protection. All these design aim to bring you a pleasant and safe vaping experience!