USB Mug Warming Coaster

USB Mug Warming Coaster

Features:

1. Made of high quality material, safe and non-toxic and odorless.

2. It can be used to warm up the milk, tea, coffee, drinks and so on.

3. Lightweight and easy to carry, only takes little space.

4. 3 gear of temperature adjustment meet different needs.

5. Suitable for school, dormitory and office and home.

6. Simple operation with waterproof design.

Please note:

1. It can only keep your drink warm. It cannot boil it.