The Yocan Rex is a quick, convenient, and portable e-nail vaporizer. The Yocan Rex featured QTC coil is made for giant clouds and hits. It features three preset functional adjustable voltage options, 3.2v, 3.7v, 4.2v, and outfitted with a single button for ease of use.  It also design with the adjustable airflow function.  So, The Yocan Rex E-nail Vaporizer Meets All vaping Demands whether you’re a tiny or big airflow users. Features: 1400mAh Battery  Type-C Charging Fit 14mm or 18mm glass piece Available In Many Colors QTC coil  1 Click To Start Or Stop Adjustable Airflow Learn more Yocan Rex information, please visit Yocan.com