Review on Headphones Sennheiser CX 300-II, black by Kiril Darakchiiski ᠌

I got them for 1,300 rubles and used them very little, for Sundays spent watching movies on the iPad - probably no more than 20-30 times and very carefully - after watching, I put them in the case that came with the headphones - now I have absolutely new-looking headphones with such a problem, what does not play in one ear - I am very happy with my purchase. Although the money is not very much, I would like it to be of greater quality; there is only one problem.