Double-walled, vacuum insulated stainless steel water/thermo bottle equipped with proven UV-C LED technology. Using UV-C LED-technology, the cap steriliser eliminates 99.9% of bacteria that can remain in the bottle within just 3 minutes (auto cycle). This keeps the bottle free of bacteria and smells and makes cleaning easier. With integrated safety function: As soon as you unscrew the lid, the cycle stops and the light goes out automatically, preventing any exposure to UV light. Suitable for maintaining the temperature of cold or hot drinks. BPA-free and leak-proof. Equipped with a built-in and magnetically rechargeable lithium-polymer battery (400mAh). When fully charged (1.5 hours), the battery can power up to 30 cleaning cycles. Output: 8-10mW. Includes magnetic USB charging cable and user manual. Capacity 540 ml. Each item is individually boxed.