Samsung Micro USB Earbud Headphone with Mic (Black) : Amazon.in: Electronics
AIEK Micro Usb Interface To 3.5 Mm Female Plug Earphone 0.14 m AUX Cable - AIEK : Flipkart.com
Mini-USB connector of cell phones pinout diagram @ pinouts.ru
Amazon.com: HQRP USB Charging Cable (White) for PDP Afterglow Prismatic Wireless Headset ; PDP Afterglow Universal Wireless Headset, USB to Mini USB Cable Plus HQRP Coaster : Electronics
DIY Micro USB-C to 3.5mm Adapter and Headphone Amplifier (Part 4) - Daumemo