Review on Sony MDR-EX15LPW White In-Ear Headphones with MDREX15 by Minoru Korishige ᠌

I bought these headphones for $690 and now I regret it because someone here said they stopped working properly after six months and that they had lost sound in one earpiece. This person didn't believe it because they were the original headphones and they had worked fine for the first year. What inept salespeople, including the store's sales department head in Bakhchisarai, who informed me of the product's originality and quality but yet blocked me from leaving a negative evaluation of the purchase on the website!