1)Use with any laptop, desktop or notebook when and wherever you are
2)No external power needed --- just plug straight into your USB port and turn on the warmer
3)4 USB Ports available
4)Keep tea/coffee/drink warm at 50 - 60¡ãC
5)Stylish design will look good with any PC
6)ON/OFF switch and LED indicator
7)Low power consumption
8)Compatible with USB 1.0 and 2.0