Enshroud function on Basketball Cap

I have not see those kind cap,not only a cap,it also have some other function with us .

Using it,you can detect wifi signal,and i think who will buy it?Some people like online very much,and you can own it for £12.99 from ThumbsUpUk.

Another one is spy camera cap.

It is connect an MP4 Player receiver,then you can use the cap to shot,the signal will be record by the player,and you can buy it at ePathChina with $167.70.