Sennheiser RS 175 RF Wireless Headphone System review: Premium wireless headphones for TV watching - CNET
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. :
Teardown & Components - The Sennheiser GSP670 Wireless Gaming Headset Review: Cutting The Cord
Sennheiser HDR180 Digital Wireless Receiver Headphone ONLY ( requires the RS180) | eBay
Sennheiser GSP 370 Wireless Gaming Headset Review
GSP 670 from EPOS | Ultimate audio, ultimate performance, ultimate game