Replay XD1080 External Audio Adapter.
The Replay XD1080 External Audio Adapter is a rugged screw-on adapter that keeps the back of your camera sealed from the elements. It features an aluminum knurled bezel that is easy to attach. The 3.5mm mini jack has a nice positive detent to keep your powered microphone or other line-in audio source securely attached.
External mics to plug into the External Audio Adapter are available separately from ChutingStar. Or you can purchase the full External Audio Kit for the Replay, which includes a mic.