PEM SPE Technology, Hydrogen Water Bottle utilizes advanced PEM SPE technology, effectively generating hydrogen-rich water to provide your body with healthy hydrogen molecules. Wide Versatility:Hot or cold water can be applied, to water quality.Suitable for all kinds of water , except pure water. Suitable for use , office and other places. Rechargeable:The built-in rechargeable battery allows this hydrogen water bottle to be used anywhere, eliminating worries about power supply. The hydrogen water bottle uses SPE and PEM technology to electrolyze water, separating and releasing H2 and O2. Molecular hydrogen is a new type of antioxidant that effectively reduces oxidative stress. Colour:Black Material:Glass+stainless steel Size:410ml Package Contents: 1 x Hydrogen Water Bottle 1 x Charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.