Thank you for viewing. I am selling a GoPro microphone adapter. (I was using it with a GoPro 7 HERO BLACK) [Product Description from HP] Use the Pro 3.5mm Mic Adapter to connect a professional-level external microphone to your GoPro and record high-quality audio. Whether you're looking for clear, studio-quality music or crisp voice audio in an active environment, you can quickly and easily connect a wide range of 3.5mm microphones. *I will also include a case (a cheap one) for attaching the microphone adapter. The product's operation has been confirmed, but please check the condition of the product in the photos. This is a used item. Please consider this before purchasing.