The 5 in 1 ultimate audio bundle features supra-aural over-the-ear dj headphones designed for crisp sound and comfort. The headphones use 40mm diameter drivers for bottomless bass and have a wide sensitivity range to deliver robust high-end sound. The ear buds are designed for optimal portability for use on-the-go. They deliver true audio execution from any audio device with a standard headphone jack. Also included are 3 adapters: 1/4 inch stereo male / 3.5mm stereo female adaptor, 2.5mm phone headset to 3.5mm adapter and a 6-in stereo 3.5mm y-splitter (1 male to 2 female).