The product very good value. It comes with a sturdy case, the sound quality and range were excellent. It needs a longer charging cable, but that's only a small problem. I re-used another USB extension cable I had.4
I have quite a large head and although a tight fit, they are quite comfortable (I have had them, on for 3 hours now and just starting to feel them).
WARNING: I had a problem charging this device properly, as I had attached the USB dongle to a USB hub and tried to charge from the Dongle. I don't think it kicked out enough power and so the headphones would not charge and acted up.
After plugging the dongle directly into my laptops USB port, the headphones now charge correctly.
So, if you have a charging problem, make sure your USB port is kicking out enough power.