This headphones are the display version which means they do not work as the retail version, BUT they work!
For example:
1.  The USB cable can not be unplugged .
2.  They work, Bluetooth works
, speakers work, you can still listen use them.
3. If you are a repairing savvy then this item might be good for you to use its parts to build or repair another of the same item.
FYI: USB Cable is super long, SEE PICTURES. I RECOMMEND. 

Returns accepted for this item if it's within 30 Days