iSunnao BT520 Bluetooth Audio Transmitter

Has anyone been able to get this thing to work? The instructions are written in broken English, and they seem to be receivers, not transmitters. Also I can’t get any of my Bluetooth equipped laptops to sync with or find these devices(I purchased two of them).
The box also mentions being able to tune this to an FM frequency, but it is clearly a Bluetooth dongle, no instructions in the box on how to enable the FM frequency…WTF?