The Yocan Evolve Plus XL features a quad quartz coil for massive vapor production and a built-in silicone concentrate jar in the base. 1400mAh battery with USB-C charging and adjustable voltage (3.4V-4.0V). The magnetic mouthpiece cap provides splash-proof protection. One of the best-selling concentrate pens on the market. Compact enough for pockets but powerful enough for serious sessions.