I have had these speakers for a while, and they are wonderful! They get extremely loud for the size and are very portable. The sound quality and such is great, and it is very durable-if it can withstand 8 hours in a hot/sunny nursery, then it is considered durable to me. The only two drawbacks were that the remote didn't work all that well(which wasn't that big of a problem) and the speakers seemed to shorten my battery life of the player itself. After using the speakers, my Zen's battery began to last only 4-7 hours instead of it's normal 10-12+.