The Neumann NDH 20 Black Edition is the all-black version of Neumann's closed-back studio headphone, built for monitoring and mixing in loud or shared environments. The closed circumaural design isolates by more than 34 dB above 4 kHz, so it works for musicians tracking next to microphones, engineers at front of house and anyone who needs to hear detail without disturbing others. Its 38 mm dynamic drivers with neodymium magnets give an extended 5 Hz to 30 kHz response with low distortion and a balanced, monitor-like sound. Memory-foam earpads are comfortable for long sessions and replaceable, the headband is spring steel with aluminium ear cups, and the headphone folds for transport. Impedance is 150 ohms and sensitivity 114 dB SPL. Catalogue 399003 includes the headphone, a detachable 3 m straight symmetrical cable with 3.5 mm plug, a 6.3 mm adapter, a cloth pouch and quick and safety guides.