How to fix microphone problems with Turtle Beach PX51's with PC via Bluetooth?

Hello everyone, my headset is nearly brand new and when im using it on Teamspeak or skype everyone complains that i sound like im on a satelite internet connection, When i use them with Xbox 360 i sound fine but for some reason when i use the bluetooth for my PC i guess they sound like garbage? How can i fix this? I spent a lot of money on these a few months ago after my X12's broke so i dont know what the deal is or why they sound less better than my old ones. My buddy has the PX5 or something and sounds great over bluetooth so whats the deal? My audio playback is through the digital optical cable with the amplifity or whatnot that came included for 270 and playback sounds perfect. Any help is appreciated.