Fosa Mini Portable LCD FM Radio Digital Signal Processing Wireless Receiver With Earphone (White)

I've been shopping again on my favorite site banggood and I saw this little device and I thought I better get one of these looks interesting it's basically an FM transmitter somehow linked to the computer so I thought I'll get one it's only just through $8.00 New Zealand and here it is now it's absolutely tiny on the photograph on banggood it it looks infinitely bigger not that there's any significance to that it's also slightly different if you refer back to the original photograph the wires on the original photograph come out here and go along and the PCB is actually bigger by about a quarter of an inch so this is obviously a slightly different module now as typical for banggood you get absolutely no instructions whatsoever for it and some of the reviews that I've just read on the banggood site are all asking how do I connect it what does it do can't make it work piece of rubbish etc