In contrast to other buyers my speakers were not expired on delivery and so everything seemed to be healing. We tested the speakers equal. The light show looks beautiful, not skin me personally but from the stool. But the function of the boxes is fully equipped for the A ****. Even my 10-year-old laptop can if he's just set a low voice to compete with the full Occurred speakers. Music that was not that came out of there. More of a scratching and noise. A total mießer sound. This is not recommendable purchase.