These things rock. I think what I like best is that I can run them off Itunes on my PC . That is exactly what I was looking for!!!!! You can go alot further then you think with the range as well. You can also plug the speakers in if you don't want to run down the batteries!!!! Way to easy to hook up and go. The handles on them are great for transporting. I HIGHLY recommend for convenience and ease to anyone wanting to pump sound outside!!! AWESOME!!!! These are great!!!!!!