There are different kinds of sound devices that help you amplify your voice over an extensive distance, and some of them are the bullhorn, megaphone, blowhorn, and the loudhailer. All these devices differ in one from the other, be it in construction or sound production. They are also similar in many ways, from their portability to their features. The megaphone is a sound device that usually comes with a conveying strap which allows it to be handheld comfortably. The bullhorn, however, features a cone-shaped acoustic that works to amplify your voice over a vast distance.\r