The Evolve 2.0 by Yocan is a truly incredible vaporizer, compatible with concentrates, e-liquids, and oils, with magnetic cartridges for each, you'll definitely get your money's worth with this piece. The mouthpieces feature a removable lid, making it easy to fill. After you've chosen your cartridge, simply slide it into the vape pen, and get the party started. There is a display window on either of this piece so you can keep track of your oil and e-liquid levels. Click your device 5 times to power up the 645mAh battery, and choose your perfect temperature from three different options. The white setting is for a low temperature hit, blue is for medium, and green is for a high temperature hard hit; you can also pre-heat your piece by clicking the button twice. Your Evolve 2.0 Vaporizer comes with a durable and powerful battery, 3 different cartridges, and a USB charging cable that connects to the micro USB charge port on the right side of your device, this bad boy is ready to whether any storm and evolve with you!