CiPeX

I purchased the Wireless Void CA-9011135-NA Yellowjacket IT'S AMAZING. Then I decided to buy another one (ca-9011130 wired) for my work (because I know the quality is great) then I noticed the side tone issue. The side tone is hardly working. If I blow into the mic then i'll hear the sound of me blowing but when just speaking there is almost nothing. The mic self is working fine, it's just the side tone not working. I tested the headset on my Home, Work & friends computer and its exactly the same issue. I also did the firmware update and it didn't help. My Yellow Jacket is Awesome and everything works it just form my wired headset's side tone that's acting up. Please help me with this issue or maybe driver updates etc? Or must I return the headset to the supplier? Kind Regards, Jacques