All decked out in his farmer attire, Mac the cow has been switch adapted to accept a standard switch (sold separately). He dances and sings “Old MacDonald Had a Farm” when you activate your switch. Song plays for 40 seconds after switch activation but can be stopped pressing your switch again. Great for encouraging vocalization, movement, and language skills. Measures 11"L x 9"W x 11"H. Requires 3 AA batteries.