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Koss RUK20 in-ear stereophones pair the Sound of Koss with unique color combinations to best express your own personal style. Bold people deserve bold headphones. RUK20 noise-isolating in-ear headphones deliver the Sound of Koss. Koss RUK20 is an in-ear headphone designed to deliver music boldly and brightly. Available in an assortment of bold colors, the RUK20 pairs both performance and design best suited for self-expression. Packed with powerful booming bass, the lightweight in-ear headphones give the RUK20 the edge in performance. Koss Bold Colors Noise Isolating In-Ear Headphones, RUK20BP: Noise-isolating in-ear stereophones. Unique color combinations to best express your own personal style. Includes 3 sizes of silicone ear cushions for a comfortable fit. Straight, dual-entry 4' cord with 3.5mm plug. Frequency response: 16-20,000Hz. Impedance: 16 ohms. Color: blue/pink.
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