Don't waste your money!
The pad and hosing are made out of very cheap material.  The ice in this unit does not last more than 1 1/2 hours max and that is whether or not you use solid chunks of ice or your standard bag ice.  We have another unit (Kodiak by Breg) which last up to 6 or 7 hours on the same amount of ice.  Unfortunately my wife and I needed a unit at the same time and I thought why not this one - it has a switch, the only downside of the other brand.  Not only is this made out of cheap materials, ice doesn't last, the heating function barely gets above body temperature.  The strap is way too short and gets in the way when trying to empty the unit so you have to unhook it unless you don't mind it getting wet.  I read the reviews about not being able to return it so I didn't bother.
Rating: 1 stars