Sennheiser Wireless Microphone & Receiver Set The Sennheiser XSW 2-835 Vocal Set is the perfect all-in-one wireless system for live vocal performances and spoken word presentations alikeFeaturing Sennheiser's renowned evolution microphone capsule with a cardioid pick-up pattern, the XSW 2-835 system delivers natural vocal reproduction while rejecting feedback and eliminating ambient noise. The XS Wireless 2 receiver has an intuitive LCD display for manual control and 12 compatible channels within the UHF band. Operating within the 606MHz - 630MHz frequency range, the Sennheiser XSW 2 Vocal Set is equipped with automatic frequency management and synchronisation via remote channel, external antennas and professional True Diversity technology.