Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Does the adapter accept a 3.5mm stereo mic, or is it single-channel only?
Document: It is the actually GoPro 3.5mm Mic Adapter. Thought it was gonna be a knock off but its the real deal! Love it!
I needed a way to hook up my gopro to the audio out source on my plane.. This is what is required to do so along with the GoPro 3.5mm Mic adapter.
If you own a GoPro and wan to talk during a video or get clear, clean audio this is for you! Easy to use plug and play!A lot of the time you will hear wind noise and rattle. With the 3.5mm adapter you can plug in a Lav microphone and you're set!
it's what you need to hook up the 3.5mm mic to the go pro soooo....... Just buy it! thanks for the click lol
This adapter works great for use with external mics. It won't turn a mono mic into stereo input (you'll still need an adapter for that), but it works well for most mics that I've tested. Only downside is that the audio in on the GoPro doesn't seem to have any gain on it, so anything recorded with an external mic is really quiet, and you'll have to add about 5-10db of gain in post to hear it :)
If you are looking at this item you must own a GoPro Hero 3 camera. Unlike the Hero 2 that has a stereo mini input, the Hero 3 cameras use a mini USB connection making this dongle an absolute necessity for those who want to use external mics to record sound to their cameras. The GoPro's built-in mic is useful if you are using the skeleton case, you are close to your sound source and there is no wind. In other words, ideal conditions.
This adapter does so much for the GoPro Hero 3, the internal mic is just too horrible, with the adapter and an awesome shotgun mic you've got yourself some fine audio!
Does what it's supposed to do. GoPro branded accessories seem a little overpriced for what your getting. The Hero 3 should have just come with a standard mic jack instead of requiring the purchase of this adapter like the Hero 2.
If you want better sound you need to use an external mike. This mini usb to 3.5mm cable is a must have in your camera case.
Obviously, I prefer the 3,5mm MIC plug directly into the GoPro Hero2 camera, it is a pity we need an extra (overpriced) cable to have a 3.5mm MIC input in a GoPro3. This certainly is a step backward.
Answer: Yes it does.