No aptX; Horrible earhook-to-headphone attaching; I slipped off on the right earpiece after a few months of use, just as I was putting the earphone on, despite the fact that I never bent or arched the earhooks;
They appear to put pressure on the ear from the inside due to the very large section that is pushed into the ear, which first causes some discomfort (I got used to it after a week, but my wife could not implant them at all). Its component is bigger than AirPods and HUAWEI FreeBuds when compared to other earphones after purchase;
The portion that goes into the ear has sharp edges. It is covered in comfortable rubber on half of it and plastic on the other; the seam where rubber meets plastic is badly processed and has a sharp edge;
Although in principle headphones with a practical form factor for active sports exist, in reality they do not. First of all, during the current mask era, they continually adhere to the mask, which is either removed together with the headphones or the mask itself. The earpiece itself is rather heavy, so the behind-the-ears did little to help the headphones stay in place; yet, it occasionally jumped out during vigorous exercise.
a bulky, unpleasant case that is impossible to carry in your pocket or hang from your belt;
The contacts for charging the headphones frequently do not fall into the grooves due to inadequate attachment of the headphones themselves in the case, despite the presence of magnets. The headphones are enclosed in a closed container for the same purpose! when I try to answer the phone and the headphones are in a case in my bag, they frequently turn on and move away from the charging contacts. This is especially "convenient" when someone calls and I can't hear anything for another 30 seconds (sound - something goes to the headphones)
They have a relatively small battery for this kind of headphones; when I purchased them, I had assumed that 6 would be a full 6 hours, but they only hold 4.
The case requires 4 hours to fully charge (see photo), but despite its impressive size, its battery capacity is only enough for about 4 full charges of the headphones. It also has inconvenient "+" and "-" buttons.