Retro Headphones Over Ear 3.5mm Audio Jack Compatible with USB-C & Lightning

NEW ~ OPEN BOX Drop + Koss KPH40X Utility Headphones Utility Series cord that allows you to seamlessly switch between 3.5-millimeter, USB-C, and Lightning connections with special Koss cables.(NOT INCLUDED) Comfortable, ultra-breathable open-back design with deep bass, expressive mids, and crisp highs. Included Drop + Koss KPH40X headphones 3.5mm to 2.5mm Utility Cord 3 pairs of ear pads (2x Black, 2x Red, 2x Blue) Drop + Koss Headphone type: Open-back Form factor: On-ear Drivers: Dynamic drivers Frequency response: 15 Hz – 25 kHz Impedance: 60 ohms SPL: 111 dB Weight: 3.84 oz