1、The lid, made of 304 stainless steel, features anti-leakage because of 360 degree silicone ring seal which is corrosion- and heat-resistant. 2、The bottle is constructed with borosilicate glass, double layer design for strong anti-scalding ability. 3、Anti-slip silicone base for wonderful stability. 4、USB charging for convenient use and carrying. 5、350ml capacity 3 minutes micro-electrolysis hydrogen production process, the higher the mineral content in water, the stronger the electrolysis effect, the more the hydrogen content. Features: The lid, made of 304 stainless steel, features anti-leakage because of 360 degree silicone ring seal which is corrosion- and heat-resistant. The bottle is constructed with borosilicate glass, double layer design for strong anti-scalding ability. Anti-slip silicone base for wonderful stability. USB charging for convenient use and carrying. 350ml capacity 3 minutes micro-electrolysis hydrogen production process, the higher the mineral content in water, the stronger the electrolysis effect, the more the hydrogen content. Usage method: 1. For the first time, after soaking the electrolytic chip for 5 minutes, press the button lightly once, then the blue light turns on and the electrolytic hydrogen production begins. 2. The default electrolysis time is 3 minutes. After the electrolysis, the blue light will be automatically off and you will hear sound prompt. 3. If you want to stop electrolysis halfway, you can press a button for a long time to force it to stop. 4. Drink the hydrogen-rich water after electrolysis as soon as possible, so as not to cause hydrogen volatilization. Specification: Condition: 100% Brand New Material: borosilicate glass Size: approx.70*70*210mm / 2.76* 2.76* 8.27in Color: Beige Power supply mode: USB charging Plug voltage: 100-240V Capacity: 350ml Power: 4W Voltage: DC 5V Battery capacity: 1000 mAh Electrolysis time: 3 minutes/time Charging time: 2.5-3 hours Hydrogen content: 1200ppb Package included: 1* Hydrogen Water Generator 1* Power Plug 1* Cable 1* User Manual Note: Please allow slight error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.