Amazon.com: Hero 4 Microphone Compatible with GoPro Hero 4 Silver Black White Edition, Hero 3, and Canon Nikon Camcorder DSLR Camera - External Lavalier Lapel Mic : Electronics
GoPro 3.5mm Mic Adapter, AAMIC-001, USB-C to 3.5mm – Design Info
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ONLENY USB Stereo Microphone for GoPro 3/4 - DZ0288 - Black - JakartaNotebook.com