Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Are they fake?
Document: that's fake,I bought this for 2 months and know is no sound.the price is cheap but the item is fake
I ordered a pair of SYNC By 50 headphones a week ago. I received them quickly after but there was a big problem..... The headphones I received were not the original pair by SMS Audio. The headphones I received were fake, or replicas of the original product. The charger was an off market white HTC Phone charging cable and a cruddy apple wall charger when the original has a black cable and wall charger. Also the dongle on the headphones was terribly made and mostly didn't work.
you do have to charge the adapter (another con) through for 2hrs before you can use them. but i got them for my father and he brings them to work and uses them and whn he is grilling he using them
very good , convenient and sounds goodbut i feel it's so hot to take it for a long time
thought the headphone would b a little bit tighter around the ear. thought the buttons would b kinda like touch instead of push. but overall great pair of headphones
they don't collapse.~ dongle - adds bulk to your device and since you must have your device out to change whatever your listening to its alil annoying. built in technology would be better in my opinion~ sync - muting/pausing music for to longer then a couple mins it'll turn off and you'll have to resync again.
these headphones are definitely not worth the money had them 1 day and the earphone started popping and crackling using the wireless adapter. Would not buy again.
the size adjusters on Beats headphones are fricken metal rails that fold!
the head phons sound so good. But the dogle is to delekit. its about to be a month that i got the head phons and thebdogle broke.
the convenience of the wireless to move around my desk area is great. another great feature is the beats press up against your ear making it a bit uncomfortable after a while, the sms are big enough to go over your ear (your whole ear is inside the memory foam cup. making it comfortable for hours. if you run out of battery you simply plug the blue wire and make your wireless headphones into wired headphones with no loss in sound.
Answer: No real deal headphones they are not knockoffs.... Sounds mids and lows  clarity/treble are better than beats.