Handheld wireless system from QLX-D series that delivers outstanding wireless functionality ideal for mid-size events and installations in businesses, hotels, and government offices with conferencing spaces; schools, houses of worship, and live performance spaces. It includes the QLXD4 digital wireless receiver and the KSM9 handheld microphone transmitter. The half-rack receiver combines professional features with streamlined setup and operation, with transparent 24-bit digital audio quality and incredibly efficient RF spectrum usage. It quickly finds open frequencies and deploys them to transmitters via the one-touch sync function, and also features Ethernet networking and mobile monitoring and control capabilities. The Ethernet networking enables networked channel scanning across multiple receivers and Wireless Workbench software integration for remote control of receiver settings from a PC or Mac. Remote monitoring and control from iOS devices is also available via the ShurePlus Channels Mobile App. The receiver works within 64 MHz tuning bandwidth and provides more than 60 preset compatible channels per frequency band – up to 17 compatible systems per 6 MHz TV channel and 22 systems per 8 MHz channel. Its digital predictive switching diversity ensures solid RF connection, while the AES 256-bit encryption ensures secure wireless transmission. The receiver offers up to 60 dB of adjustable audio gain, high-contrast LCD menu and controls with lockout feature, audio and RF LED meters with peak indicator, detachable half-wave antennas, one mic/line switchable XLR output and one 1/4” instrument output. With 24-bit digital audio quality, incredibly efficient RF spectrum usage and an interchangeable KSM9 microphone cartridge, the handheld microphone transmitter is ideal for wireless vocals in presentation spaces, music venues, and houses of worship. It provides quick syncing with a wireless receiver over IR at the push of a button and delivers clear, uninterrupted signal over the entire operating range. The transmitter also offers the AES 256-bit encryption for secure transmission and does not require any gain adjustment over 120 dB of dynamic range. Other features include 1 or 10 mW selectable RF output power, frequency and power lockout, and backlit LCD with easy to navigate menu and controls and selectable display mode showing group/channel, frequency or battery runtime. The transmitter has rugged metal construction and provides external charging contacts for docked charging (when used with optional SB900A lithium-ion rechargeable battery). It offers up to 9 hours of continuous use with 2 AA alkaline batteries or up to 10 hours of continuous use with Shure lithium-ion rechargeable batteries (not included). The system is further supplied with a microphone clip, a power supply, two AA batteries, a battery contact cover, two half-wave antennas, two BNC cables, a zipper bag, two BNC bulkhead adapters and a rackmount kit. Frequency: 534-598 MHz