USB Coffee Warmer heater pad with 4 USB port hub with on/off switch. Mug Warmer perfect for keeping you brew warm on cold days! The Mug Warmer can maintain the temperature of coffee, tea, drinks at 35 ° C or so, easy to install, no need to drive, hot-swappable. Rated voltage of the Mug Warmer: 2.5W-5V DC, a single on/off conversion system, when the heater starts, there is a red LED light instructions.
Near the metal hot plate with a good insulating material to prevent burns, USB interface, no battery. Expand 4 HUB interface, convenient access to other equipment!