I hear random inputs in my headset

I use my headset through a HP docking station, so when I work it’s connected to my work laptop, when I game it’s connected to my gaming laptop, regardless, it’s always connected via hyperspeed, never bt. It’s a kraken v3 pro, wireless.

It started with my headset randomly saying “ BT connected” or “ BT disconnected” while I’m at work. Now sometimes I actually hear someone else’s sounds ?! as if it connected to their set-up. Last time I heard some TV show, recently it was some breathing/voice.  It never seems to happen when gaming, so I’m guessing it doesn’t happen when Synapse is rolling, but I of course couldn’t dl synapse on my work laptop. 

I’m concerned about the safety of information at work, of course, but also about my privacy in general, and then there’s just the non-existent comfort of use, wth is going on, how do I stop this ?