If you're a music professional, you want to get open-back headphones for mixing or mastering. These applications require you to hear the best quality and most accurate sound possible.
YTH-966 is a such a prefessional open-back headphones also makes Users comfortable: Open-back headphones are often more comfortable, as the lack of pressure from a sealed ear cup design allows for better ventilation and less heat buildup.
Reduced ear fatigue: Open-back headphones can reduce ear fatigue.