Learn about the Deluxe Monaural Headphones that come with a ¼” plug for use with cassette player/recorders & over-the-ear ambient-noise reducing earcups. They are made with rugged ABS plastic for durability & have an adjustable headphone strap with recessed wiring. Available with either straight or permanently-attached coiled cords, only the 2924AVPV version features volume control on its earcup.