Bang & Olufsen BM6 Mono Ribbon Microphone B&O Mic BM 5 6 7 Denmark #30877 | Reverb
Bang & Olufsen BM4 Ribbon Microphone | Reverb
Amazon.com: Audio Replacement Cable with in-Line Mic Remote Volume Control Compatible with B&O Play by Bang & Olufsen Beoplay H6, H7, H8, H9, H2 Headphones and Compatible with iPhone iPod iPad Apple