So you would like to capture better quality audio with your GoPro HERO4? The Sennheiser MKE 2 elements has you covered. This rugged camera is waterproof to 1M for 30 minutes and delivers 20 Hz to 20 kHz frequency response. The MKE 2 elements is omnidirectional and works in temperatures from -10C to +50C.
The microphone is resistant to wind noise, allowing you to capture clear audio outside.