I bought to replace the CX300 ll, the assembly and wires are an order of magnitude better, the kit is almost the same, but there are 4 different types of replaceable rubber bands, instead of three in the younger model. Different pros: Good surround sound, comfortable to wear, the main thing is to choose the elastic bands from the kit. The quality is just excellent, because of the flat wire, the headphones do not get confused in your pocket. With its cons. The sound is good, but for the price I would have liked better. In general, the problems, like all plugs, are the lack of high ones.
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