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

Input:
Question: Hi, where´s the microphone? does it hear properly your voice while driving?
Document: Everything works as advertised and the wireless calls with the microphone is a bonus. Don't have to touch anything on the phone anymore which is a lot easier (and safer) driving. If you just play music through your phone or an ipod in your car like me for 90 bucks you can't go wrong.
Again, it was still much less complicated than the stereo in my wife's Toyota. I will need to work on adjusting the location and sensitivity of the microphone, as people have made minor complaints about low volume of my voice during calls, although the clarity has been reported to be excellent.The downside to this stereo is use with an iPhone (4S).
Easy to install, easy to pair with my phone(Razr Maxx) and works great. The microphone picks up my voice and cancels out background noise better than the factory system in my wife's new Optima. I withhold the 5th star because it won't work with the voice activation system on my phone. Otherwise a great system.
If you have a nice speaker set in your car, then do yourself a favor and buy a high-value stereo to match it.I have an Audi TT which came with a very nice Bose Concert Sound System, but the original stereo didn't' have bluetooth, AUX or USB support, and I really wanted to a) listen to my music on my iPhone wirelessly via bluetooth and b) hear the voice prompts from the Maps navigation, and c) have Siri Eyes-free support.
Wow, this awesome for a small car. I am getting clear voice while answering the phone via BT audio. Mic is awesome.
Is a very nice receiver. I cannot imagine my car driving without it. When I go in to my car, my iPod touch autoconnects in less than a minute.
The microphone that ships with the stereo works very well, and all people I've phoned have had no issues hearing me.
My only complaint is demo mode, which turns on if the unit ever loses power. Other than that BT works fine (would've liked a voice command/call button) and everything else is great. Doesn't need Pandora, and the mic is crap.
This is a great unit. Now I can control all my audio without having to look down at my phone while driving. The face is detachable, which is great, because let's be honest. People be stealing. sounds great, lots of customization options, and the bluetooth handsfree works great. Add in the low price makes this a great deal.
Maybe the steel box its in has something to do with it but I kinda doubt it. I will verify next time I pull it out to re-run wires and put back the star I took off because of this. Its only 16ga steel and I keep the cover open while driving so the faceplate is exposed and again the radio is only about 12" from the phone.
Answer: The microphone is attached to the back of the stereo via a long cable - about 6' or so if I remember correctly.  You'll need to route the mic to a good spot and mount it there.  I put mine on the windshield support where the plastic meets the cloth headliner.  I was able to hide the cable in the door seal and then run it along the underside of the console over the pedals to the back of the stereo.  That makes it sound like a lot more work than it actually was.  I'll try to post some pictures later if I have time.I haven't had any problems with voice quality.  I used a Belkin Bluetooth adapter (http://www.amazon.com/gp/product/B004CLYJ2I/ref=wms_ohs_product?ie=UTF8&psc;=1) for about a year prior to this and my wife constantly complained about the voice quality when I called her using it.  She hasn't had a single complaint about the call quality with the JVC unit yet.