The Beyerdynamic Custom One Pro are closed back studio headphones, with a 16ohm driver. This makes them ideal to connect to a range of devices from laptops to professional studio headphone amps. Key feature of the Custom One's is the Custom Sound Slider, that allows settings from neutral to enhanced bass.
Variable bass reflex system
Versatile design with replaceable accessories
High efficiency due to 16-Ohm drivers
Rugged headband made of spring steel
Single-sided, plug-in type connecting cable
Soft, replaceable ear and headband pads
Gold-plated mini stereo jack plug (3.5 mm) & 1/4in adapter (6.35 mm)
These are great headphones! Have them in black