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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
lightweight design that delivers the full power of the Sound of Koss in a wide range of colorways perfect for learning labs
・Speaker unit 40mm Fullrange speakerx1+Bass diaphragmx1
屏幕：LED數碼管（尺寸：21x14mm）
5mm Aux In
輸出接口：RCA Stereo Output
Koss PRO4AA km5 lightweight design that delivers theKoss Pro4AA headphones set the standard for full size professional headphones. They were introduced in 1970 as the first dynamic headphones to deliver true full frequency and high fidelity performance with impressive noise isolating capabilities.
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