the sound quality is not wonderful. I think these would work best for kids three and up. So I installed the old ram and took a good look at it with CPU-Z. Unfortunately, after 2 weeks and 3 uses, one pair of the sandals broke. it blows my mind how fast these charge my phone compared to a normal charger. ?? So all in all , a very impressive purchase & surely recommended . The shoes are exactly what I expected. I was not expecting a top notch product for the price, but unfortunately the size is almost one full size smaller. the case itself is so cute and out of all the clear cases amazon sells this was the only true clear case. Even that is a tight squeeze.