That's what we're trying to do. I was specifically interested in the claim that 6 out of 10 people on buses and trains (later clarified to 6 out of 10 headphone wearers) use wireless headphones of some description.
Also, I am not prepared to say precisely where my count took place, but it's not necessarily a different geographical area to the above claims.
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How can you say that if you haven’t been riding in subways, trains and buses all over the world? You specifically mentioned Europe. That’s fine, and if that’s your experience there, so be it, but don’t blindly assume that your experience is the same worldwide, especially if you haven’t been to places around the world to witness for yourself. I live in Orlando, FL. and I see both wired and wireless headsets everywhere. The kids are the ones I typically see wearing wired headsets (mostly Beats) and they’re usually listening to music. Wireless headsets are typically seen in conjunction with people talking on their smartphones. Wireless headsets from Plantronics, Jabra, Motorola, Samsung and Apple are the ones I see the most, but that’s “here” in Orlando.