Make an External Microphone Mount for GoPro HERO3. : 7 Steps (with Pictures) - Instructables
For gopro accessories External Stereo Microphone 3.5 mm Mini USB Mic Adapter Cable for GoPro Hero 3 3+ 4 4 session Action Camera|usb mic|mini usb micusb adapter mic - AliExpress
Movo GMA100 | GoPro 3.5mm Mic Adapter | GoPro HERO3, 3+ & 4 Mic Adapter
Amazon.com : SOONSUN Skeleton Housing Case with LCD Touch Backdoor for GoPro Hero 4, Hero 3+, Hero 3 Cameras, Side Open Housing Case Allows Charging Camera Without Removing The Housing Case - Transparent Blue : Electronics
Review: GoPro HERO3+ Black Edition - Pinkbike
Andoer External Stereo Mic Microphone with 3.5mm to Mini USB Micro Adapter Cable for GoPro Hero 3 3+ 4 for AEE Sports Action Camera - Walmart.com
Amazon.com: SOONSUN Frame Mount Housing Case with External Lavalier Lapel Clip-on Microphone for GoPro Hero 3, Hero3+, Hero 4 Black White Silver Action Cameras : Electronics
GoPro 3.5mm Mic Adapter for HERO3 / HERO3+ / HERO4 - AMCCC-301 - Walmart.com
Movo GM100 Clip-on Lavalier Microphone for Compatible with GoPro HERO3, HERO3+ and HERO4 Black, White and Silver Editions - Includes Mic Adapter for Go Pro : Musical Instruments
SHILL 3.5mm Microphone Adapter for GoPro HERO3 & HERO3+ SLMA-3
External Stereo Mic Microphone With 3.5mm To Mini Usb Micro Adapter Cable For Gopro Hero 3 3+ 4 For Aee Sports Action Camera - Microphones - AliExpress