Build quality seems good for the price. They appear to be a more expensive product. The sound quality is very good for wireless headphones in this price range. I've had it for a week now, I use it every day and I haven't had any connection loss, the connection is reliable. .For me the fit is great, I've used it a few times for running and never had to adjust or put it back on! They are very light and don't feel like heaviness in the ears. The profile handles wind noise much better than the Bose soundport and Power Beats Wireless. I haven't used it in over a couple of hours without putting it back in the case so I can't comment on the battery life, I haven't had to charge the case since I've had it. Each earbud can also be used individually which is great! Call quality is on par with much more expensive Bluetooth headphones I've had. You can tell someone is talking with headphones/hands, but it's not deterrent and doesn't crackle/hiss too much.
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