RELX’s research and development teams engineered Super Smooth™ through 76 sensory tests with hours of adjustment. With 5 performance indices and 2 original technologies, you'll enjoy smoothest vapor yet from RELX Infinity. Clicks into place to charge with built-in pogo-pin — all wireless. Plus, easy-to-carry Slim-Fit Charging Case offers 3 days of power* with up to 1,500 mAh. Bolstered with metallic seals, maze-like leak traps and silicone layers, the new RELX Infinity comes with a new generation of leak-resistant design.