If the problem with a malfunction of one of the speakers is a marriage in some batch, then they are worth their money and you can put 4+, however, if everyone has this and their service life is less than six months, then 2 points. Pros below: Price, noise reduction, good sound (was), they catch a connection far enough and do not lose connection on the street / subway Has some cons: After 4 months, the right earpiece became quieter than the left by 2-3 times. It is impossible to use it, except as a plug. Headphone microphone for show