• USB cup warmer to keep your coffee, tea, or beverage hot. • Connect it to your computer to keep the drink warm. • Material: Iron casing and aluminum plate. • Voltage: 5V, Power: 10W, Current: 1800 mA. • Diameter: 128 mm, Height: 16 mm, Cable length: 1 m. • Weight: 135 g. • Keeps the drink at a constant temperature of 55 degrees. • Cannot boil water, only retain heat. • Easy-to-clean surface with a damp cloth. • Do not immerse in water for cleaning. • Keep out of reach of children and pets.