Aspire brings you yet another great new powerful mod, following on from the success of the Speeder, and Skystar dual battery mods we now bring you an even more powerful, more up to date and flexible mod, the Dynamo. The Dynamo is a 220 watt mod with a 2.0 inch TFT color screen. It is a dual battery mod and for even more flexibility and accepts 20700,21700, and 18650 batteries using the supplied silicon adapter. As with our previous mods of this type, it comes with every function you have come to expect from Aspire. Wattage/Voltage/BYPASS/TC(Ni,Ti,SS,M1,M2,M3) and CPS (Customizable Power Settings). Its rounded corners make it very ergonomic in the hand, and easy to operate all the functions with just one hand, an absolute joy to hold.