This product may not be top of the line compared to others but it does what it is suppose to do. It has a function that allows you to make the entire chair vibrate and another function that plays different melodies. I like that this product come with an automatic shutoff after a certain amount of time, it;s saved my batteries on several occasions. I did not like that it took C size batteries. The toy bar is a little boring but my daughter lover playing with everything. It is very light weight and easily portable. I would buy this again.