There are some flaws

Since the cap is not very expanded, I have difficulty to position the headphones just above each ear.
If it is then sitting times, it does not necessarily beautiful.
Moreover allows the battery life to be desired.
I own other Bluetooth headset, which no less than endure 8h continuous operation and also have cost only 20.
In this hat headphones holding barely for an hour, that's me clearly not enough.

Positive can say I that the hat keeps you warm and the sound quality is ok. It corresponds approximately to that of cell phone-supplied headphones.

How very different listen, I can not judge, but I suspect that now but few people know my music taste.

Although my cap not particularly like it, I'll keep it. For jogging in winter it ranges all times and for the price is also ok.