Features: Functions: Hydrogen water can promote metabolism in order to control weight, delay aging, improve sub-health and sleep quality. Highly antioxidant: The antioxidant value of 1.5L hydrogen water per day is equivalent to that provided by hundreds of fruits and vegetables. Fast electrolysis: It takes only 3 minutes to quickly electrolyze and improve the water quality. The hydrogen content is between 600-1300ppb. Safe: The bottle adopts a non-toxic platinum coating titanium electrode plate, which will not ooze the toxic substance. Easy to charge: You can charge it through the USB port of mobile devices. 2.5h-3h is required. Any problems, feel free to contact us. Honor to serve you!