Introducing the Large Capacity Hydrogen Cup by Yieryi, designed for gym, office, and home use. With a 1.5L BPA-free Tritan body, this stylish cup produces hydrogen water, offering antioxidant support with precision measurements of ±0.01 ppm. Its ergonomic design features a USB rechargeable base for convenience and portability. Enhance your hydration and wellness routine with this innovative flask. Welcome to visit our website!