InfoComm 2022: Sennheiser Reveals the Scalable EW-DX UHF Wireless Microphone System June 11, 2022 | Home / June 11, 2022 rave-video / InfoComm 2022: Sennheiser Reveals the Scalable EW-DX UHF Wireless Microphone System InfoComm 2022: Sennheiser Reveals the Scalable EW-DX UHF Wireless Microphone System