Main Features:<br />Contact tube fit 510 atomizer (such as: kayfun v4， protank， etc.)<br />New version billet bridge， Changalbe coils (0.4-3.2ohm)<br />Easy to adjust engraved voltage dial， left gear up， right gear down<br />Volt: 2.8-5.5V<br />Watts: 20W， 30W， 40W<br />Worked by 2 x 16340 battery (not included)<br /><br /><br /><br /><br /><br /><br /><br /><br />    Specifications<br />Specifications<br />	 Type: Electronic Cigarettes Accessories                                                  <br />                        Accessories type: MOD                                                  <br />                        Mod: VV/VW Mod                                                  <br />                        APV Mod Wattage: 40W                                                  <br />                        Features: Variable Wattage                                                  <br />                        Material: Metal                                                  <br />                        Available Color: Blue， Purple， Gold， Black， Silver， Pink， Red                                                	<br />Dimension and Weight<br />	 Product weight  : 0.147 kg                                                  <br />                        Package weight   : 0.31 kg                                                  <br />                        Product size (L x W x H)  : 10.2 x 5.3 x 2 cm / 4.01 x 2.08 x 0.79 inches                                                  <br />                        Package size (L x W x H)  : 15 x 9 x 6 cm / 5.90 x 3.54 x 2.36 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Mod， 1 x 510 Drip Tip， 1 x 510 Brass Ring， 1 x Connecting Tube， 1 x Spare Parts (Bag)， 1 x Gift Box Packing                                                	<br /><br /><br /><br />                                                <br />