Coil Style : Twisted Kanthal Coil, Triple Titanium Coil Voltage : 2.2V, 2.4V, 2.6V, 2.8V 510 Compatible : Not Provided Charger Style : Micro USB Charging Included In box : Utillian Device, 2 Coils, 2 O-Rings, Packing Tool, USB charger How To Use : Not Provided Not Provided Brand Highlights : Not Provided Product Highlights : 1 Year Warranty (Battery Only)