Replacement Cable Extension Spring Coiled Cord for Audio Technica ATH M20 ATH M20X ATH M30 ATH M30X ATH M50 ATH M50S Headphones|Earphone Accessories| - AliExpress
Which Studio Headphones Should You Buy? - Audio Technica ATH-M20X, M30X, M40X & M50X Review - YouTube
Audio-Technica 5 Pack ATH-M20x Professional Monitor Headphones, 96dB, 15-20kHz, Black - with Microfiber Cloth