Beyerdynamic DT 770 PRO are well-built and quality sounding headphones of a professional Austrian audio brand. They have a closed back enclosure and over ear design that makes their bass stronger and comfort better. They are used with a wire only and are a great pair for casual and critical listening.
Beyerdynamic DT 770 PRO is represented in the impedance options of 16, 32, 80, and 250 Ohm so you may choose the one for your needs up to the devices you mostly use or use an amp for a good sound with a lower impedance player. The sensitivity of 96 dB and frequency response 5Hz-35KHz should reproduce a high fidelity sound with a good strength at all volumes.
The model Beyerdynamic DT 770 PRO has a stronger bass compared to the previous models that is provided by the closed back enclosure. The tones are bright and crisp at all ranges without drawing any shade back. The trebles are upfront and may feel a bit sharp with some bright tracks. All the instruments and voices are there so they sound pretty natural for mixing as well as for audiophiles. There is no open soundstage, but the imaging is detailed.
There is a coiled undetachable cable and a ¼ (6.35) adapter in a set for better usability. The cable is quite long for comfortable use, 3 m/9.8 ft.
The thick padding on the headband may seem a bit tight for long wearing. It is adjusted for the head size. But the cushions on cups are soft and quality with microfiber fabric. Unfortunately, they do not fold or lay flat. The closed cups also can make your ears warm if used for a long time. The weight of 360g/12.6 oz is quite acceptable for comfy fit.