New York Giants Polo Grounds Laser-Etched Musical Crystal Ball Solid crystal sphere features your favorite NFL or MLB stadium in 3-D High Tech black base that lights up for brillant display. This base has a rotating feature to allow you to appreciate the stadium design from every angle The lights turn on, the music plays either "Take Me Out to the Ballgame" for MLB parks or "You Gotta Be a Football Hero" for NFL stadiums. Music, lights and rotation are activated by a single button for ease of use.