- If used together with a phone, the sound quality will only please, very deep bass, clear, rich.
- does not work as a headset on a PC. You can either use a microphone but the sound quality will be like that of a voice recorder (disgusting), or you choose to use the laptop's built-in microphone in the sound settings, then normal quality sound will come through the headphones. After 1.5 - 2 hours of work, the music starts to interrupt, stutter, you have to put it in the case and get it back.