Fairly LARGE kitchen timer. Runs off one AAA battery (included). Has a MIN, SEC and STOP button along with a tiny switch on the right hand side to turn the whole thing off. There's a rubberized magnet on the back which will barely hold this time to a metal surface -- clearly the weakest link in this product. I'd want to glue one of those rare earth magnets on the back of this thing to keep it where I put it. One nudge and gravity would take over. The beep is not offensively loud or unpleasant, but that may be due to the battery not being as fully charged as it once was.  This also arrived with a nice white lanyard like you'd get with a cell phone in case  you wanted to carry it around with you or hang it on a hook. I don't see how that would be terribly useful, but it was a thoughtful thing to include with the product.