USB Electric Cup Heater Mug Warmer

Coffee Mug Warmer - 55 Degree Constant Temperature, Automatic Shut Off Cup Warmer for Home Office Desk Use, USB Smart Heating Plate Beverage Warmers Electric Thermostat Coaster for Hot Cocoa Tea Milk - 3 Speeds Modes Feature: USB safe power supply, automatic power-off protection: Cup warmer overheat protection, built-in thermostatic circuit, even if you forget to shut it down, you don't need to worry about it automatically power off, fit for any device with USB port. 55°c constant temperature throughout the day, all-round surface heating: healthy heat source, pi heating method, high thermal conductivity, you can enjoy your drink at its best temperature all day long. 3.Smart touch, 3 levels of temperature adjustment: it can be set to 70°C/90°C/110°C respectively. click the power switch continuously to set the heating temperature and issue a "di" sound, can be set different temperature. Smart reminder to drink water: touch to turn on, remind once every hour. Available for multiple