Sucks the batteries dry - you have to remove them from the gun when not in use because the batteries drain out - I wasted a lot of batteries before figuring this out. The battery cover is finicky. Just don't waste your money.
Do Not Waste Your Money!!! In addition to all the comments in the above review, the gun burns through batteries before you are able to use the gun by the time the glue is hot. This is a piece of junk!
Bought this glue gun thinking that I could use it anywhere, which is true if it worked properly. First, it take forever to heat, the trigger does not push out the glue fast enough by the time I get the second drop the first one is already hard. Lastly the cover for the battery compartment always pops off..wish there was at least an option of AC adapter.