The DT 990 Pro is a pair of open-back headphones designed for professional audio monitoring. Known for their comfortable fit and lightweight design, they feature soft velour ear pads and an adjustable headband, making them suitable for long listening sessions. These headphones have a wide frequency response, typically ranging from 5 Hz to 35 kHz, which allows for detailed sound reproduction. The DT 990 Pro is often used in studios for mixing and mastering, providing an accurate representation of audio without coloration.