Although though I still don't fully understand the situation, I believe that the headphones have some sort of issue with either the battery or the box. Yet, even in the very beginning, the charge was not kept for a very long time at all. These probably won't function for more than an hour even though they have noise canceling. After using them for more than a year, I can confidently tell that they are not at all worth the money that they cost. Despite the fact that they only do very little work, the battery is just the weakest part of them, and the difference in distortion between the left and right ear has gotten worse over time (the right one discharges substantially faster than the left, by a difference of 20-30%). After using it for a month, another problem started to arise: the earpiece might not charge when it is placed in the case. It is unclear what is linked, and I attempted to clean the contacts while also checking the casing to see if there was a charge. You simply place it in a case throughout the nighttime, and when you wake up the following morning, you have a conference in the disagreement and 20% on your ears all of a sudden, the top is straightforward! They connect without any issues, but they can fall off now suddenly with a half charge from the laptop, which is a meter away from me. This problem with self-discharge has already been described by many people on this forum, such as how a firmware update "solves" it. After installing this firmware update, I experienced issues with the connection. The icing on the cake is that I purchased a pair of Freebuds 3i for myself, and although having the same issues, the battery life is significantly improved. Overall - there is only a typical sound, and the connection management between devices works passably well; but, as I mentioned before, there are a significant number of annoying jambs. If it's more from honor, I won't buy your ears.
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