Sunbeam® GoHeat USB Powered Heating Pad, Light Gray

Works perfectly in my RV! Just what I wanted.

i love this thing but im using it as a heated base layer, not muscle relief. its a mediocre heating pad, if your looking for relief. i would say it hangs out around 110°. nice and cozy but not a penetrating heat. but if your in search of a cheap alternative to heated jackets, this thing is amazing. it huggs nicely to the body, and for the most part is comfortable all day long. no gigantic bulky batteries and adapters, wear whatever layers you want. it doesnt blouse around while climbing, crawling, or just generally working. and i can use the portable batteries I have on hand. do yourself a favor and grab some velcro to slap on your batteries, and you wont have to worry about using the extension or wearing out the plug.

Basically it's great for all of like 10 to 20 minutes. Then it stops being hot and loses its heat quickly. It takes a few minutes to get it to restart so you can get the heat back. As someone who has really bad period cramps it helps to be able to have it going while I am out so I can keep doing what I need to do during my periods and not be stuck at home in pain all day. Would be great if it actually stayed hot for more than 20 minutes honestly.

Beware the cover picture on the box. It makes it look like you charge the pad on your computer then go for a walk; not so! The unit only operates when plugged into a USB port! VERY deceptive advertising on the box!

Super small and charging cord is really short. Plus it's not what I thought it was. I was expecting a portable heating pad meaning it'll stay charged for me to use without it being plugged in.

Doesn't get very hot and it's really small. Maybe for an arm or something, but definitely not for back or abdominal cramps. Don't waste your money.

Don't buy it, even if you read a good review. It doesn't heat well, even on high. It also covers a very small area. Definitely not worth the money

Barely gets warm even when plugged into the wall. On high it's not even as hot as a regular heating pad on low. Even on high against bare skin it is not hot at all. Very small. The dimensions it gives (12.5 inches x 7.5 inches) don't even all heat up. Waste of money, maybe I'll give it to my cat.

if it were possible i would give no stars, this is a piece of crap kind of same experience as "Shawn" on here said only i used it even though it got barely warm at all but when i went to see if it would even come back on to see if maybe it'd get hotter the second time since it had been plugged in longer by then the second time i tried it it would not even work so to sum it up it is not hot enough at all needs to be much hotter (even on high temp which is what i had it on that was barely warm) so people do not listen to all these so called positive reviews they are not legit this item sucks big time IT NEEDS TO GET MUCH HOTTER AT HIGH TEMP AND ACTUALLY KEEP WORKING NOT STOP WORKING TO WHERE IT WONT EVEN STAY/COME ON (and i dont mean the auto shut off thing i mean the button only flickers and doesnt stay lit to signal it being on)

This is a piece of junk, first time I tried it I went though the 3 settings to test it. It went from low, medium, to high then off. Then when I tried to turn it back on to use it it did nothing, I tried different USB ports tried using 120v plug in nothing. don't waste your money.