Hushme is a mask that looks like the one Bane wore in The Dark Knight Rises. It also looks like something they would slap on a serial killer so he doesn’t bite you. However, it’s actually used to silence the wearer’s voice for phone privacy in public areas.
The odd looking device covers the wearer’s mouth and blocks the sound of their voice with “masking sounds” that can be selected and customized from the accompanying app. Yes it looks goofy, but if privacy is that important to you, I guess you won’t care that all of your co-workers are making fun of you and quoting Bane.
When your cubicle is ashes, then you have my permission to die!