Are you looking for the perfect tool for organizing various outdoor events? Megaphones are just what you've been missing. Versions with a siren today hide a number of interesting conveniences. Today, an MP3, USB / SD player or even a recording function cannot be missing. An acoustic range of hundreds of meters or reliable built-in 12V rechargeable batteries will meet the requirements of anyone who needs to amplify the human voice or other sounds in a certain area. And all this thanks to their low weight without excessive burden on the hand.