Review on Baby Einstein Along Tunes Musical by Victor Anderson

My first purchase was 8 years ago. She loved it, just like her parents. Quality sound, volume adjustments, teaches cause and effect relationships. Parents changed 2 batteries in more than 4 years. then gave it to a friend. Second purchase 5 years ago. She had to walk everywhere for at least 3 years, maybe longer. Third purchase 1 year ago for grandchildren of classical musician parents; he likes it, they like it. The music box seems indestructible.