Discreet DesignLuxury Black FinishTemp Control 350mAh Battery(2.4v, 2.8v, 3.2v) w/ Preheat(2.0v)OLED Digital Display0.5ML Metal/Glass Ceramic TankMagnetic 510 Thread Adapter5 Click On/Off – Safety FeatureUniversal Micro USB Charging PortLifetime WarrantyPRODUCT DESCRIPTIONseries x! Exclusive item here at The Kind Pen, meeting the demands of todays oil and xtraction users. Equipped with our own 0.5ML ceramic/wickless glass reusable cartridge, while also able to use your own 510thread prefilled tanks with the included magnetic adapter(simple drop in design). The variable voltage battery allows you to adjust the voltage(2.4v, 2.8v, 3.2v) to your atomizer by adjusting how much of the battery’s potential voltage is actually in use. With a variable voltage battery you can adjust the voltage(2.4v, 2.8v, 3.2v) within a particular range to suit your personal preference, the type of oil you’re vaping, and the type of atomizer coil you are using. As an added feature The Kind Pen has added a pre-heat feature(2v) to the series x to help soften your material, and help get the oils flowing easily. The series x has a bright LED screen to take the guessing out of what voltage you are on. A COMPLETE MASTERPIECE FOR ALL OIL USERS!Fits all 510 compatible tanks(Glass or Plastic)Includes our very own 0.5ML Glass/Metal Ceramic Wickless TankABOUT OIL VAPORIZERSOil vaporizers are vapes specifically designed for use with legal essential oils. Oil vaporizers are wickless and heat up to vaporize your substances and turn them into tasty vapor ready for inhalation. SHOP MORE OIL VAPORIZERS HERETHE KIND PEN AIMS TO BE THE WORLD’S BEST ONLINE HEADSHOPIf you have any questions or concerns about this oil vaporizer, feel free to email us at firstname.lastname@example.org. Our staff is highly knowledgeable about our products and always happy to help you make a decision.We take pride in honoring a 100% customer satisfaction guarantee on all of our vaporizers and accessories. If for any reason you are unsatisfied with your purchase, send it back!