In the field of audio production, the Beyerdynamic DT 990 PRO is a highly regarded pair of open-back headphones. These headphones deliver precise sound reproduction and are suitable for lengthy listening sessions due to their comfortable fit and lightweight design. They are known for their natural, open soundstage and wide frequency response range. The DT 990 PRO has a high sensitivity of 96dB and can be driven by a variety of sources, making it a versatile choice for music production and audio engineering.