“How long do the Frozen II Bluetooth headphones keep their charge for? I charge them overnight and two days later they sometimes work and sometimes don't work.”
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We returned the pair we purchased. I was unable to keep a charge for more than a few hours. Bluetooth constantly dropped its connection from every device I tried. I could not find a way to simply turn them off in order to preserve the battery whenever we were not using them. Not a good product in my opinion.
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