Presenter/vocal headset wireless system from BLX series that combines professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box, containing a rack-mount receiver BLX4R, an analogue body-pack transmitter BLX1 and a head-set microphone SM35. Rack-mountable and featuring rugged metal construction, the receiver offers simple setup and intuitive controls. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference, while removable antennas allow for quick antenna distribution. It provides XLR and 6.3mm output connectors with adjustable output level, an LCD screen with detailed RF and audio metering and a two-colour audio status indicator LED. The body-pack transmitter features power and battery status LED, an adjustable gain control and quick and easy frequency matching. It is powered by AA batteries (included) that provide up to 14 hours of continuous use. The performance headset condenser microphone gives multi-instrumentalists the freedom to express themselves without sacrificing sound quality. A tight, unidirectional cardioid polar pattern provides excellent rejection of off-axis sound sources to prevent feedback and signal bleed onstage, whether in use in small clubs, large installations, or arena tours. Its flexible gooseneck design allows for optimized placement that further improves source isolation, while its lightweight and low-profile form enables comfortable, long-wearing use. The microphone is equipped with a TA4F (TQG) connector is compatible with any Shure wireless body-pack. Locking snap-fit windscreens tame plosives, breath, and wind noise for clean and intelligible sound. The system comes supplied with a power supply, a clothing clip, windscreens, rack-mount hardware and a user guide. Frequency: 518-542 MHz