Headset wireless system from GLX-D Advanced series that operates in the Z2 frequency band and includes the GLXD1 body-pack transmitter, GLXD4R rack-mountable receiver, SB902 spare/replacement lithium-ion battery and SM35 headset microphone plus necessary accessories such as rrechargeable battery, power supply, USB cable and carrying case. The rack-mountable wireless receiver GLXD4R with removable antennas features the revolutionary LINKFREQ Automatic Frequency Management and allows for operation of up to 4 compatible systems in a typical setting, and up to 8 maximum under ideal conditions. Its integrated battery charge port can charge a spare battery while the system is in use. The receiver features a high resolution LCD screen for real-time transmitter battery status, remote adjustable transmitter gain control and two-colour charge indicator LED, as well as XLR and 6.3mm output connectors. The GLXD1 transmitter features an ergonomic design and reversible belt clip to fit comfortably and snugly in various positions. It offers up to 16 hours of continuous use with Shure lithium-ion rechargeable batteries and provides locking TQG connection for use with Shure lavalier, headset, earset, and instrument microphones and guitar cables. The SM35 headset condenser microphone has a tight, unidirectional cardioid polar pattern which 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. It is perfect for hands-free vocal performance and multi-instrumentalists. Flexible gooseneck design allows for optimized placement that further improves source isolation, while the lightweight and low-profile form enables comfortable, long-wearing use. Locking snap-fit windscreens further tame plosives, breath, and wind noise for clean and intelligible sound. Frequency: 2,4 GHz