The kit contains                            1 ×body                                                     2 ×atomizer                                                     2×18350(18650)batreries                                                     1×18350charger                                                                                                                         1×giftbox 
functions 1.Adjust the voltage from 3V to 6V by hand,higher voltage,bigger vapor. 2.Measure and displaythe resistance of the atomizer 3.Display the power condition of the 18650/18350 battery by bar. 4.Short circuit Self-protection.When atomizer resistance is below 1.3ohm,or incorrect usage(such as reverse battery)leading to short circuit,the device will turn off itself.