Single-channel wireless receiver features revolutionary LINKFREQ Automatic Frequency Management (2.4 GHz frequency band) and battery rechargeability. An integrated battery charge port can charge a spare Shure lithium-ion battery while the system is in use. Allows operation of up to 4 compatible systems in a typical setting, and up to 8 maximum under ideal conditions. For use with GLX-D Digital Wireless Systems. Features high-resolution LCD screen status display. Real-time transmitter battery status displayed in hours and minutes (accurate within + / - 15 minutes). Remote adjustable transmitter gain control. Two-color charge indicator LED. Green: Charged. Flashing Green: 90% charged. Red: Charging. XLR and 6,3 mm jack output connectors. Lightweight, durable construction. Operates in the Z2 frequency band. Bandwidth: 20 Hz - 20 kHz. Colour: Black