Meet the Yi-One Coffee Mug: a smart mug that makes sure you enjoy every sip of coffee at the right temperature. The Yi-One Coffee Mug cools your drink from 200F to 150F in 3 seconds. The temperature is maintained for up to 5 hours.
The Yi-One Mug is 360-degree leak resistant. It comes with a medical grade 316 stainless steel inner & outer liner and food grade liquid silicone seal ring.