Horn and sounder

A horn and a sounder used for cheering during a game to produce loud and encouraging sound, comprising an upper body, a lower body, and a mouth piece;

• said upper and said lower bodies having a semicircular cross section and together forming two symmetrical halves of a horn, said two bodies each being provided on an outer periphery near a front end and a rear end with anti-slip lines and on an inner plane at a front portion with a recess serving as a sound producer, and, on said inner plane at a rear portion with a protuberance, said upper and said lower bodies further having a plurality of first annular ribs formed on a rear outer periphery, and said mouth piece having a plurality of second annular ribs formed on an outer surface thereof and thereby forming a plurality of corresponding annular grooves on an inner wall of said mouth piece, whereby said mouth piece is put over said upper and said lower bodies to bind them together by engaging said annular grooves of said mouth piece with said first annular ribs of said upper and said lower bodies, with said front portions of said upper and said lower bodies slightly open apart due to said protuberances which press against each other when said two bodies are bound together by said mouth piece.