These headphones are the first closed-back PRO headphones of Ultrasone with the new S-Logic® Plus technology. As all Ultrasone PRO headphones, the PRO 900i also comes with useful accessories. The PRO 900i ?s hard case is equipped with extra earpads with great isolation, detachable USC (ultra soft) cable and Neutrik connectors. The titanium-plated drivers guarantee unlimited prALL-AROUND SOUND - The entry-level model - Performance 820 These headphones were developed in 3 different colours and are fitted with 40mm PET sound transducers. They are available in black, black -white and black- red. Choose your favourite colour and enjoy the ALL-ROUND SOUND of Performance 820 headphones. You will receive a 1.2m cable with your Performance 820. This cable is equipped with a microphone, remote control and a 3.5mm gold-plated jack. The bayonet connector means you can quickly change to a different cable of your choice. You can find more cables in the Ultrasone shop under “Accessories”. In addition, you will also receive a transport bag for storage.