A Christmas elf is featured, presumably singing a carol in a very loud voice on this whimsical ornament from Thomas Glenn Holidays.  The reverse side show a music stave and musical notes.  A fun and light-hearted ornament!   
The "Sing Loud for All to Hear" Ball Christmas Ornament
Part of the High Design Collection
Handcrafted in Poland
Made from glass
Approximately 4 inches tall (10cm) or 100 mil