Headband headphones series ultrasone performance type of fitting over ear transmission mode cordless features gold plated jacks manufacturer specific features s logic plus sound function passive noise reduction sensitivity 96 dbmw impedance 32 ohm frequency response 10 25000 hz driver 40 mm number of drivers 1 membrane pet magnet type neodymium length of cable 3 m types of cable single sided removable cable jack 35 mm jack shape straight