I have nothing to say regarding sound insulation because it is not included in the design of these headphones produced by any company. Spending more money on higher-end models is a better investment overall. I use an analog device from Sony that is not in the budget range, and I am really delighted with it. The sound quality is adequate, which is a plus. The construction quality is not terrible. Excellent range for the receiver. The communication does not become sluggish or stop altogether. Consists of: 1. The control unit is incessantly placed on its side. If you take it out of your ears and hang it around your neck, they move out and get lost. It is often impossible to participate in physically demanding sports with them; at most, you will be able to walk around the gymnasium. 2. The battery does not hold its charge very well, and it only allows for three to four hours of listening time. It is not possible to use the device while it is charging at the same time. 3. There is not a microphone, and the people being interviewed are outraged by the quality of the sound.
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