Celebrate in a BIG way with a super sized balloon! Our 28" Happy Birthday Dots Sing-A-Tune Mylar Balloon is the perfect addition to your birthday party decor. Sing a Tune balloons bring the party to life, simply tap the balloon and "Happy Birthday to You" comes alive! A great option on its own, or you can add other mylar and latex balloons for a bright birthday bouquet or centerpiece! Sold uninflated.