A device to magnify sound, or direct it in a given direction in a greater volume, as a very large funnel used as an ear trumpet or as a speaking trumpet.
a cone-shaped acoustic device held to the mouth to intensify and direct the human voice
a cone -shaped device designed to amplify sound
a funnel-like tube that forms a beam of sound waves by reflecting some of the diverging rays from the sides of the tube
a portable, usually hand-held, funnel-shaped device that is used to send a person's natural voice toward a targeted direction
a portable, usually hand-held, funnel-shaped device that's application is to send a person's
a strictly acoustic device, and rolling some posterboard into a cone, and singing through it should do the trick
a funnel (cone) shaped device for amplifying or directing sound
cone-shaped tube that makes someone’s voice louder
A large funnel-shaped horn used to increase the volume of the voice.