This review is for the bluetooth adapter only as the headphones get 5 stars every day. A Bluetooth adapter is fine depending on what you plan to use it for. The battery only lasts 4-5 hours, so not for a full hour of work. However, if you're only going to wear the headphones to the gym for a couple of hours and then want to charge them every day or two, they're great for that purpose. The sound isn't as fantastic as a wired one, but which Bluetooth adapter? I would recommend this with a disclaimer so you are aware of battery life before you buy.
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