Funnel-shaped amplifying device that's an essential cheerleader accessory
[DOC] [TLE] Megaphone - Wikipedia [PAR] A megaphone, speaking-trumpet, bullhorn, or loud hailer is a portable, usually 
hand-held, cone-shaped acoustic horn used to amplify a person's voice or other 
sounds ... Twenty years earlier, Kircher described a device that could be used as 
both a ...