My daughter has fun on the CD player. At full volume rolls over the sound, but it does not have to also be on full blast. The sound quality is indeed disastrous for me as a hi-fi fanatics, but it's not even a Bose system. For the purpose of the children's CD player completely OK. I can not make any statements about the robustness. The part is now about 2 months old and is still working. The Vibration sensitivity of the CD player is me OK, running with the players the CD already comes time for stuttering, but is not a device for jogging. CD's have been read so far all.
