Material: high borosilicate glass Capacity: 420ml Battery: Built-in rechargeable battery Charging time: 3-4 hours Rated Voltage: DC 5V Hydrogen concentration: 8000-1000PPB Features: Made of high borosilicate glass, non toxic and safe to use. Helps you get high concentration hydrogen water quickly within 3 minutes by electrolysis. Built-in sealing ring for effective leakage protection. Non-slip cup base. Round cup mouth. Large capacity lithium battery and universal USB interface for quick and convenient charging. Easy to operate, one button to start work. High purification of membrane, speed up the filtration, high efficiency, easy to drink at any time. Portable, easy to carry, great for office, travel and work etc. Unique split design. The borosilicate glass body and base are designed separately. Maintains not only the temperature of the water, but also comfortable drinking. Can also be used for washing the face, for caring for the skin. Use It is easier to absorb when it is moisturized. Package Includes: 1x Healthy hydrogen-rich Water Cup