380 ml stainless-steel inner tank
The documented capacity is 380 ml, approximately 12.8 US fluid ounces. The inner tank is specified as food-grade 304 stainless steel. The official FAQ also names ABS and PTFE in the product material list and mentions CE, FCC and RoHS markings.
USB rechargeable and cordless
A 5V USB connection charges the internal system. Once charged, the mug works without remaining plugged in. Power supports both the stirring motor and the temperature display.
Thin drinks only
Suitable examples include coffee, tea, milk, chocolate milk and juice. The seller specifically warns against thick smoothies, yogurt and batter because viscous mixtures are too heavy for the small magnetic rod.
Use and cleaning safety
Handle hot drinks carefully. Remove the magnetic rod before cleaning, rinse the steel tank with warm water, and keep the motorized base out of water. Never immerse the base or place the mug in a dishwasher.