These headphones have many features that at first I did not notice. They very well made with the outside being metal.
These headphones last for about 5 hours under constant use if listening to music, but dont worry if it dies on you you can use the back up 3.5mm jack to use it as regular headphones.
These also have a radio built into them so you can use them even if you dont have a phone or your phone is dead.
There is a slot/port where you can put a sd card and you can play songs off that instead of a phone or the radio.
The range of these are pretty impressive, you can stay connected to you phone up to 33 feet or 10 meters.
The reason why I only gave it a 4 star was because there is no charging box for it (granted they are not expensive to get and most people have one), the buttons were movable for what ever reason and had gaps between because of that and mine a decently big scratch on the side of them.
But they are not bad headphones and I would still reccommend them.