cx 300s black

I got response from sennheiser hearing that there is no such serial number in their database

the sound in the right ear goes fuzzy & static and hurts my ear as it is a piercing sound, i thought it was something i did with crossing wires or fault on my devices, but it happens on every device. after inspecting the wires i can see the wire looks bent/crimped leading up to the right ear bud. when they were packaged the wires were rolled/folded and might have been damaged in this process.

It broke just after five weeks, first left then right earphone! I will return it immediately but its not possible because of return policies!!!

I have been trying for ages to find a replacement for my trusty Sony MDR-XB55AP earbuds which appear to have been discontinued. I don't do bluetooth or wireless when commuting. Unfortunately, it is becoming harder to find name brand earbuds these days. I do not want to purchase random earbuds from an overseas company I am not familiar with. I remembered owning these Sennheisers many years ago and was happy to find them still available on Amazon (albeit in white, I would have preferred black). They sound very similar to the Sonys but actually have better (read: more) bass. I listen to a lot of Dub Techno and Ambient on the train so need some "oomph" in the lower registers. In terms of sound isolating they seem similar to the Sonys. Of course they are not as isolating as wireless ANC earbuds but they are pretty good for wired earbuds. In terms of durability I do wonder if they will last as long as the Sonys which seemed nearly bulletproof but I will take my chances since it was so hard to find replacements.

Sonido de calidad. Se ajustan un poco mal pero el sonido es bueno. Además no sé enredan y son torteros.