Custom One Pro White is now available. The Black version remains in the line as beyerdynanic expands the "Custom Series" product range. The first truly customizable and interactive headphone in the world. The end user can change the sound, the style and the application any time after the purchase. Designed and crafted in Germany by Beyer dynamic for Pro Users, Consumers and Pro-sumers. Use with portable and professional devices. One headphone many applications. Change the sound via the Sound Slider, the style and the look. The CUSTOM series is one-of-a-kind, as it allows you to redesign and re-engineer your headphones at any time, making them the perfect match for whatever the situation or your mood demands.