I had the TB100 and now the TB200. The advanced control of ONE justifies the additional costs. The new model fits well, is just as compact, has great sound quality (better than others in the same price range) and gives you more control than the original. What's more, the touch controls are neatly arranged so you don't accidentally affect the call or the music when you need to adjust the headphones. Legacy headphones sound great, are durable and comfortable, and are amazingly compact. Overall not bad. However, on the old model, the touch controls were annoying and made it VERY easy to accidentally end a call or pause/skip a track in your music during ANY headphone adjustment. Take the TB200 model. Also, I suggest buying white or colorful headphones. At some point, like all headphones, they somehow fall out of your ears and onto the grass at night. This is not the case if you want to look for black in-ear headphones.
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