The plugs differed in size. In the amount of 4 pcs. And probably all. The headphones themselves were in a bag, and 2 bags had spare earplugs. From the minuses, https://jiji.co.tz/building-materials/acrylic there is no volume control.
Earplugs. There is a clothespin for the wire. Microphone works just fine. The ones on the headphones were average. Ivery IS-1 with a good microphone.
There is a call and reset button. Some a little less, others a little more. The interlocutor hears loudly and clearly. The earphones sit well in the ears and do not fall out. The wire is thick rubberized, as it were. On the plus side, for such a price, an excellent microphone, good sound. They look stylish enough. Even if you do not bring it to your mouth, and the wire will just hang, everything will be heard well.