Features: High-quality materials: The hydrogen enriched water bottle is made of high-quality materials, which is wear-resistant and durable, not easy to break, and can be used for a long time. Large capacity design: This hydrogen water bottle has a capacity of 300ml, which can produce a large amount of hydrogen-rich water at ones time to meet your water needs for the day. Easy to carry: This hydrogen water bottle is ergonomically designed, easy to drink and carry, perfect for work, sports, hiking, traveling, etc. Rapid hydrogen production: It only takes a few minutes to get healthys hydrogen-rich water, which can replenish the body39;s needs for a day in one go. PERFECT GIFT CHOICE: This hydrogen water bottle is easy to use, making it a perfect gift choice for friends and family on Christmas, birthdays and other holidays. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: Double-layer high borosilicate glass Size: 22*6.5*6.5cm Capacity: 300ml Operating temperature: 0°C-100°C Battery capacity: 1400 mAh Maximum power: 6W Hydrogen concentration: 1400-2000ppb Negative potential: 450MV Charging time: 4-5 hours Charging method: USB Note: Hydrogen production method: imported ion-membrane, which can absorb pure hydrogen, effectively isolate residual chlorine and ozones, and separate water vapors, hydrogen and oxygen. Production method: Hydrogen can be produced directly from a cup or connected to a mineral water bottle. Water quality requirements: You don't have to choose the water quality, you can use boiled water Package List: 1 x Hydrogen Water Cup