DUKE SMART BAMBOO DRINK BOTTLE

Elegant slim design 500ml stainless steel vacuum double wall drink bottle with filter, featuring an eco-friendly sustainably sourced natural bamboo outer wall
It has a touch LED temperature display lid which will show the inner temperature with a range of 9°C to 98°C
Leak-proof, keeps hot for at least 4hrs-8hrs and cold for 24hrs
The inner wall is 304 food grade stainless, BPA Free
It is not dishwasher and microwave safe, handwashing is recommended.
Please note: the battery inside the lid is not exchangeable and its lifetime can be more than 3 years(assuming the display is lighten up about 20 times a day)