IFrogz Sport Bluetooth Headphones Black Review

I bought these at the airport because my JT Lab wireless headphones were dead. Right out of the box they have a dirty sound, not clear at all. The set contains three sets of earphones in different sizes. Unfortunately I had 1 small, 2 medium and 3 large sizes. It's useless if you have small ears. They will come in handy for my flight, but I can't listen to them for long. It's really hard to understand what people are saying clearly, so I have to turn up the volume, which is also inconvenient…