Bad sound 7

I am well aware that I price of the helmet is related to its function NoiseGuard, and the sound quality, I do not expect a fabulous listening experience. But I do not expect that the low saturate and produce a sound approaching a very unpleasant crackling as soon as it is overstretched. This is common with movies, as soon as there was a noisy scene as the takeoff of an airplane, for example, and I've never had that before this helmet even when using earbuds 2, literally.

Furthermore, I also hear a very unpleasant crackling when I use it with my computer and the computer is plugged into the train.

Avoid