Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: I bought this mic to use with a Canon Vixia G10.  When I plug it in I get sound, but it is super quiet.  Do I need an adapter to increase the volume?
Document: I purchased this mic to use with a Canon Vixia HF R20 camcorder. The sound quality is truly excellent, especially for the price. It is easy to attach to a lapel, etc, is quite small and unobtrusive, and comes with an optional wind screen. The total cord length is 20', with roughly three feet between the mic and the battery pack, and then another roughly 17 feet from the battery pack to the plug.
This is the best bang for buck you can get for this kind of mic! You should keep in mind that you will need an adaptor if you want to use this with your idevice or gopro, but should be plug and play on your DSLR. Battery included works and saves you time and money. The super long cord lets you really set up the shot with the camera and not worry about being to far away to plug in the mic.
I bought this for the Canon Vixia HF R20--the only mic to come up for this camera when doing a search on Amazon--and my experience, as that of other users, was a complete bust. Volume essentially none-existent. Hugely inferior to the on-board mic. Totally worthless for what I needed it for. One of the biggest disappointments that I've ever had in buying a product from Amazon.
The sound on from the Canon 7d stock microphone is pretty bad.I have 2 of these ATR-3350 microphones connected through a dual mono to stereo plug adapter and now I can mic 2 subjects and get good results.Just have to remember to turn the switch on before recording.
These headphones give terrible feedback when I plug them into my Canon camcorder... either I was sold duds or the product is seriously faulty. I get much better sound with the cheap lapel mic I bought from Radioshack!
Very low gain. Still didnt figure how to get the results i wished for. Might need some post production to increase the volume.
Bought this to use with my Canon DSLR as the built-in mic is atrocious and I just didn't like the sound quality being produced. I'm new to the external mic world so I wanted to make a budget conscious first purchase and this one didn't fail my expectations.It's great for the value and I love the sound quality my videos have now! I did purchase the 3.5 stereo adapter after carefully reading through the reviews and I'm glad I did.
I was very disappointed with the sound in conjunction with an iphone. It was flat sounding and had VERY low output. Bummer! !For this to work on an iphone 5, you will need an additional mic adapter for around $25. It is an adapter, so it is not perfectly suited for the iphone-the volume is very low. You have to almost yell, put the mic 1 inch from your mouth, or boost the volume on post production.
I tried to create iPad videos indoors in a quiet area just using the iPad microphone but the sound was too quiet on the resulting video. I asked friends about it and they recommended this lavalier mic. This does the trick, now I get professional sound quality for my videos. I also needed to get an &#34;iPhone 1/8 inch microphone adapter - 3.5mm 4 conductor TRRS Male to 3.5mm Microphone Input Jack&#34; to connect it to.
Pretty good price, and a decent performance. Need to increase volume from recording in your editor. Would still buy again.
Answer: Check the battery, and then check the audio settings on the camera.  I have the same camera and the mic works great.