Mobile phones with headphone jacks cannot be used, because mobile phone with circular headphone jack, C port is just a charging port, it is useful not suitable for headphones with C port
Choose 3.5 all metal plugs compatible with major mobile phone computer very quickly.
It has every headphone mirrored for better stereo sound.
Sensitivity switch/portable and practical. Group call recorder in songs/smart phone calls.
Pure copper core, more effective anti-interference. Starting copper core. Sound restoration quality without reaching the highest level of headphones