Features: * All-in-one USB drink cooler and warmer

* Operating temperature range: 8 to 80 degrees C

* Easy installation with no driver required; Plug-and-play

* With one switch to select hot, cold and turn-off functions

* Blue LED status indicator

* Qualified insulation material around the metal hot plate to prevent burns

* USB extension cable included

* Large logo imprint area for promotional purposes; Logo printing service available

* Ideal as promotional item and gift

* RoHS compliant