Feature 100%brandnewandhighquality. 1.Made of high borosilicate glass, non toxic and safe to use. 2.Helps you get high concentration hydrogen water quickly within 3 minutes by electrolysis. 3.Improve water quality, Easy to absorb and can help to boost your metabolism and reduce constipation to some extent. 4.Built-in sealing ring for effective leakage protection. Non-slip cup base. Round cup mouth. 5.Large capacity lithium battery and universal USB interface for quick and convenient charging. Easy to operate, one button to start work. 6.High purification of membrane, speed up the filtration, high efficiency, easy to drink at any time. 7.Portable, easy to carry, great for office, travel and work etc. 8.Unique split design. The borosilicate glass body and base are designed separately.Maintains not only the temperature of the water, but also omfortable drinking. Can also be used for washing the face, for caring for the skin. Use It is easier to absorb when it is moisturized. Specification: Color:Sliver Material:Stainless Steel, high borosilicate glass,silicone ring Battery: Built-in rechargeable battery Charging time: 2-3 hours Rated Voltage: DC 5V Power: 10W Hydrogen concentration: 600-900PPB Suitable for water temperature: 0-60 Capacity:420ml Size:Approx.20.7x7cm\/8.15x2.76in PackageIncluded: 1 x Hydrogen water bottle 1 x Charging cable 1 x Manual Notes: Do not place the mug near fire or other strong heat sources as this may damage the mug. The glass material is fragile. Therefore, avoid falling or colliding with hard objects. Do not immerse in corrosive liquids. Do not use directly for tea in order not to impair the function of the tea.