Greefly Vamo v3 Feature:1.Adjustthevoltage3V-6V2 Check the resistanceoftheatomizer3.Show the powerconditionofthe18350/18650battery4.ShortcircuitSelf-protection.Whenatomizerresistanceisbelow1.3ohm,orincorrectusage(suchasreversebattery) leadingtoshortcircuit,thedevicewillturnoffitself.5.Abletomatch510,dct,ce4,CE5,vivinovaandegoseriesatomizers.6.black,chrome,stainless steel colors in available.Vamo V2 MOD :