In general, this type of music transfer is not the best and can not with CD, USB or AUX port keep up but the quality is amazingly good for products of this type and a convenient alternative to a new radio. one hears occasionally slight crack of the speakers but that's hardly disturbing and the operating noises mention some -> that's just a cassette it can not be changed. I have before me, sooner or later to buy a clever radio but until then the cassette is in the price, a great alternative who rejects worth super clean sound is out of place but I had quite a few products of this kind that really true krottig and am very satisfied