Sennheiser GSP 670, the first wireless headset from Sennheiser - Samma3a Tech
Amazon.com: EPOS I Sennheiser GAME ONE Gaming Headset, Open Acoustic, Noise-canceling mic, Flip-To-Mute, XXL plush velvet ear pads, compatible with PC, Mac, Xbox One, PS4, Nintendo Switch, and Smartphone - Black. :