IAN Beverage Warmer for Coffee Cup and Teapot, USB Electric Warmer (Golden)

This warmer really disappointed me. It did not keep my coffee hot, more like barely warm. Instructions said it worked best with a glass cup so I bought one, didn't make a differences. If you like your coffee barely warm then this would work for you, if not don't buy this warmer.

It keeps my coffee quite warm - so long as it is plugged into the back of my docking station! According to the tag on the USB plug (which came off, but not before I took a photo): "In order to achieve the best effect of the thermal insulation experience Please ensure that the output power of the computer USB is greater than or equal to 24." When plugged into a port with sufficient power, it keeps my coffee pleasantly hot/warm in any of my three ceramic mugs I use at work, all of which have concave bottoms. The time I plugged it into the laptop itself, however, the heating was very weak. The surface is large enough to hold the 4 cup coffee carafe itself, and plenty large for the mugs.

Claims of 150 degrees - Actual Luke warm. I bought this because the claim of high heat were consistent with it being the highest priced warmer that I could find on the market. Big mistake!! Worse than the $9.99 model I am trying to replace. I should have listened to the reviews.

Everything was good

Guess I'll read the info more closely next time. Didn't realize it was only for a USB port. Used an adapter, but it doesn't keep the coffee even luke warm. Plus there is no On/Off switch. Wish I had sent it back.

Doesn't keep beverage warm.

Great Product

Doesn't do the job