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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13
retro style lightweight design inspired by iconic ’90s tech
5mm Aux In
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
傳動方式：皮帶驅動 (Belt-Drive)
Koss PRO4AA km5 retro style lightweight design inspiredKoss 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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