Handheld wireless system from GLX-D Advanced series that operates in the Z2 frequency band and includes the GLXD4R rack-mountable receiver, SB902 spare/replacement lithium-ion battery and the GLX2/SM58 handheld transmitter plus necessary accessories such as microphone clip, rechargeable 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 GLX2/SM58 handheld transmitter features an integrated SM58 cartridge and transmits wireless audio with digital clarity and rock-solid reliability. It is powered by Shure lithium-ion rechargeable batteries which provide up to 16 hours of operation.