The Yocan Dubb is a powerful 750mAh dual 510 cartridge battery that lets you vape two carts at once with a vibrant color TFT display and precise voltage control. Supports two 510 carts (up to 2g each) – vape one, the other, or both 1.26″ color TFT screen for voltage, battery, puffs, and resistance Adjustable 1.8V–4.2V (0.1V steps) 10s preheat for perfect hits Draw or button activation with magnetic hidden connections Fast USB-C charging on long-lasting 750mAh battery Ideal for flavor blending and extended sessions on the go