These are excellent headphones. I was a bit worried at first because the red charging light went out after a few minutes, but I think it should have happened. They charged in about 3 hours and when fully charged, the blue indicator light came on. They do everything as advertised. Bluetooth calls are the best calls. The sound is great. If you like really loud sound, turn up the volume on your device first. Then turn up the volume on your headphones. They definitely block the sound. I've been wearing them since I got them about a week ago and I really like them.
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