lue Thermal Cup for Household for Car Feature: 1. Fast Cooling And Heating: Meet daily drinks, fast cooling and heating and keeping warm. 2. Function: The red light is on, and the temperature of 45C is more suitable for continuous heat preservation. The blue light is on, and it can quickly cool down to as low as 8C. 15W low power, less than 0.4 kWh a day. 3. Car USB Power Supply: Cooling at any time, suitable for car USB power supply, suitable for all USB power supplies. 4. Portable: Outdoor activities, easy to travel, carry with the bag, can be used anywhere, does not take up space, mini body, light and portable, exquisite body is easy to store, carry it with you in summer and cool. 5. Water And Electricity Separation Technology: The cup body is detachable, the cup body is easy to clean and use, and it is safe and secure. Specification: Item Type: Heating Cooling Cup Material: 304 Stainless Steel Insulation Performance: 0 to 6 Hours Capacity: 330ml Product Size: Approx.23.4 x 9cm / 9.2 x 3.5in Package List: 1 x Cup 1 x Usb Cable 1 x User Manual How to use: Instructions for use: 1. Open the lid of the cup 2. Pour water or liquid beverage into the cup 3. Tighten the lid 4. Plug in 5. Press and hold for 1.5 seconds to turn on, the blue light is on, the cooling light touch switch, the indicator light is off, touch the switch again, the red light is on, heating 6. Touch the switch, the indicator light is off, shut down 7. Drink straight from the cup or share