Hi. I had my Predator Helios 300 for about four years now. I don't know why but, I have always struggle to make the built-in or headphones microphone work. The built-in mic only worked once in the past four years on a video call and I don't know how I managed to make it work. Recently, I'm trying to make the mic work for MW3. Yesterday, I spent five hours to try everything to make the built-in mic or the headphones mic work but, no results. It's like no matter what I do is not picking up any kind of sound. I know it's probably something simple but, there are so many different settings between the laptop, Battle Net and MW3 that it could be literally anything. I had a surround sound program and I deleted that to reduce the number of different parameters. Right now, I only have the Realtek audio program, the Microphone array program and my headphones Razer Barracuda X as different programs for sound on my laptop. I tried everything between the settings with these. I just don't know and don't understand what it's going to take for the microphone on my laptop to work once for all. I'm just about to bring my laptop to a repair shop. In my personal opinion, there should not be so many different settings and so many different parameters just to setup a microphone on a computer. I'm not a recording studio technician and it shouldn't be that complicated. I shouldn't have to bring my laptop to a repair shop just to setup the mic properly. It could be anything between my laptop settings, Battle Net settings, MW3 settings or completely something else.