Ok. I was skeptical about this ball...surprisingly it is bright. It seems smaller than a normal soccer ball so I measured it. Yep, 27” as stated. I wonder how long the batteries will last. I’ll update this review after the 1st pair die. feels durable. Lights upon kicking. Takes two sets of batteries to light entire ball so make sure you keep lots of replacements on hand otherwise you’ll end up with 1/2 the ball lit.
I decided to try to contact Kan Jam, since I was more interested in the possibility of an exchange than a return. In my experience, if a company will honor an exchange, some of the time, they won't require that you send the original product back. But I couldn't find any direct contact info for Kan Jam and decided to just open up a Return Request through Amazon. I did say in the comments that I would prefer an exchange over a return, but I
I bought this soccer ball for my granddaughters for Christmas. It arrived inflated, which concerned me. My husband inflated it with no problem and it is just fine. The ball is bigger than I thought it would be, but that is because it is a size 5 and the girls use a size 4. I didn't see the different sizes when I ordered it. It does light up very nicely and the girls love it. They got outdoor soccer nets for Christmas and I thought this ball would be great as they play late in the day. They can't wait to put it to use.
Our next soccer ball on the list is the DribbleUp Smart Soccer Ball. This ball is the second (and only other) “smart” ball on our list. Like the Adidas brand ball, this DribbleUp ball is designed for use with a smart device and application for training. There are a lot of features to love about this ball; however, it’s more expensive than the Adidas alternative.

Why do I always have to pump up even expensive balls? Many balls use bladders made out of latex. Natural Latex Rubber bladders offer the softest feel and response, but do not provide the best air retention. Micro pores slowly let air escape. Balls with natural rubber bladders need to be re-inflated more often than balls with butyl bladders. Even after one or two days, the latex bladder will leak enough air so that you will have to inflate the ball back to recommended pressure. Some balls use carbon-latex bladders in which the carbon powder helps to close the micro pores. Soccer balls with carbon latex bladders usually increase air retention to approximately one week. Of course, check the ball for punctures that may cause the air to leak out.
When it comes to soccer ball bladders, you will generally opt for the material that provides the most responsive touch for the highest levels of play. This is because it is a simple matter to re-inflate a soccer ball not to mention the fact that most competitive leagues will have numerous balls on hand. If touch and responsiveness are your key bladder attribute, there is no other material better than latex.
Latex bladders are one of the best materials when it comes to ball construction. However, with latex bladders, air won’t last as long as butyl bladders and will need more attention for proper inflation. Butyl-blend bladders hold in the air much better, but they are harder and less receptive in play. Mid-priced balls will usually have a mix of butyl and rubber. https://www.youtube.com/watch?v=c1SVcjYY6TE