Good product for the price - recommended.

Material:
Largely plastic. Minimal odor know attention to high-quality materials.

Function:
Practical scale to adjust the headphones to different head sizes.
By foldable earcups, the headset makes small and easy to store.
The microphone with control button on the cable of the headphones allow use as a headset into the phone.
You can interrupt the listening pleasure and accept with the button at the microphone so the conversation with incoming calls.
The headset can also be used as a "DJ" headphones.
By pivoting earcups is also possible to hear with only one ear.

Sound:
This corresponds to the expectations generated by the product label: "Dynamic Solid Bass"
So has enough power but also the playback of heights is good.
Significantly better than the in-ear (the ear) headphones that I had previously.

Comfort:
Be is well damped in so the outside noise.
However, the damping is not so strong that you will notice nothing of the outside world.
Does not wobble, has good grip. The ears do not get hot even after prolonged use.

Desirable improvements:
One way to adjust the volume and the cable would be good.

Overall impression:
Good product for the price - recommended.