Amazon.com: Hero 4 Microphone Compatible with GoPro Hero 4 Silver Black White Edition, Hero 3, Canon, Nikon Camcorder DSLR Camera- External Lavalier Lapel Mic : Electronics
Gopro Hero 4 3 Usb 3.5mm Mic Adapter Cable | Mini Usb Microphone Gopro Hero 4 - 3.5mm - Aliexpress
GoPro Pro 3.5mm Mic Adapter USB-C to 3.5mm and USB-C Adapter | Sweetwater
3.5 Mm Microphone Adapter Cable For Gopro Hero 4 5 6 7 8 Session Mic Cable Type C Interface Aamic-001 Usb Camera New Accessories - Sports & Action Video Cameras Accessories - AliExpress
GoPro 3.5mm Mic Adapter for HERO3 / HERO3+ / HERO4 - AMCCC-301 - Walmart.com
Amazon.com : Microphone Adapter for GoPro Hero3 and Hero4 Only 3.5mm to USB Mini : Electronics