The USB Coffee Warmer is UL-certified so you can count on it to keep your favorite drink warm at a constant temperature of 131℉. This mug warmer is multifunction and in addition to warming your drink, you can also use it to charge your smartphone.
- USB WIRED CHARGING FUNCTION: The USB mug warmer can not only warm your drinks, but also can charge your phones, cup...
- USB COFFEE MUG WARMER: This cup warmer has passed UL certification, US plug, keeps your favorite drinks warm at constant...
- CUP WARMER WITH GRAVITY SWITCH: The coffee cup heater has built-in gravity induction switch, You only need to put a...