I really appreciate this detail and the sellers should point this feature out front and center in the listing. Have been using for well over a year and hasnt shown and slowing down. Bought these in 5. If I had it to do again I would just use the cable that came with the mouse alone. Adecuado para niños If youre looking for a cheaper alternative to correcting your posture that doesnt cause discomfort, this is it. Hanno solo bisogno di una spinta e di un buon audio ed è fatta. It does not have ANC but honestly, there is no need for it. I am GI Joe with these boots on. Frequency response was far more than I expected!