Designed for the mobile DJ, the HF150 Headphones from Numark are collapsible and takes up minimal space in a gig bag. The closed-back design features on-ear cups that provide solid isolation from noisy environments and rotate to provide hands-free, single ear monitoring. The unit offers 40mm drivers that deliver full range sound and deep low frequency extension, while the 32 ohm impedance works well with low-output devices. The HF150 includes an attached 4' coiled cable with a 1/8" TRS connection and ships with a 1/8" to 1/4" adapter.