The black American Audio HP 550 over-ear DJ headphones are optimized for DJing and personal listening. They feature a flexible design to accommodate double- or single-ear wearing and are foldable for compact storage and transport in the supplied carrying bag. The padded headband and earcups ensure comfort for long sets. The headphones utilize 57mm drivers to deliver high output and a frequency response of 5 Hz to 30 kHz. The attached 14.7' single-sided cable is terminated with a 3.5mm TRS mini jack, which enables compatibility with most mobile devices and can be connected to either of the included 1/4" adapters, so you can connect to mixers.