Math Slam has been reviewed 6 times with an average rating of 4.17
Great idea, but cheaply constructed and it is loud with no volume control. Bad for the car or if anybody is in the room.
We contacted our customer to assist. Math Slam has a volume control on the side of the unit. Additionally, it includes a headset jack for earphones. If Math Slam isn't a slam dunk, we've got many other math products that score big fun. Take a pass by our Returns & Exchanges center for details.