Why is it you always seem to lose your keys when you need them most? With this new key finder, your keys can be found with a whistle! Whistle lightly and the key finder will emit a loud beeping sound to help you locate your item. It can also be used as a red flashing light, with just the push of a button. Print your company name or logo and never have the fear of losing your keys again! This handy promo comes with two pre-installed batteries and an instruction manual.