Shure BLX24R/SM58 Handheld Wireless System, BLX4R Wireless Transmitter & BLX2/SM58 Handheld Transmitter
The Shure BLX24R/SM58 Wireless Rack-mount Vocal System combines professional-quality sound with simple setup and up to 14 hours battery life for legendary audio performance right out of the box. The system includes BLX4R half-rack single-channel receiver, legendary SM58 handheld transmitter, microphone clip, power supply, 2 AA batteries, rackmount kit, 2 1/4 wave antennas, and user guide.
SUPERIOR AUDIO - Perform with Confidence
Get the show going with no wires attached. Professional Shure sound for every band and any vocal need.
RELIABLE SIGNAL - Extend your range
With a range of up to 300 feet (100m), you can take the show into the crowd without interruption.
EASY SETUP – Own the stage
BLX will have you up and running in record time with one-touch scan and selection.
BATTERY LIFE – 14 hours of power
Because BLX transmitters get up to 14 hours of power from a single pair of AA batteries, the show can go on and on (and on).
SYSTEMS EXPANSIONS – Run up to 12 channels per frequency band*
You’ll probably need to find a bigger stage before you run out of channels.
*Note: region and environment dependent.
VERSATILITY INCLUDED – You’ve got options
An impressive variety of Shure microphones are available in BLX systems, so you can find what works for you.
IN THE BOX:
- 1 53A8611 RACK MOUNT BRACKET
- 1 53A8612 LONG RACK MOUNT BRACKET
- 1 53B8443 LINK BRACKET
- 1 90AZ8100 HARDWARE KIT
- 1 WA371 Swivel Adapter
- 1 31B1856 Thread Adapter
- 2 95A8699 ANTENNA/BNC,1/4 WAVE
- 2 95A8994 ADAPTER,BULKHEAD,BNC
- 1 95B2313 BAG VINYL, ZIPPERED
- 2 95K2035 CABLE,BNC,22 in.
- 1 Power supply

BLX4R
Wireless Receiver for BLX-R Wireless System
Rack mount analog wireless receiver provides improved linearity and frequency response with group and channel scan for easy set-up. Features include frequency QuickScan, adjustable output levels, and two-color audio status indicator LED.
- XLR and ¼" output connectors
- Microprocessor-controlled internal antenna diversity
- Two-color audio status indicator LED
- Green: Normal audio levels
- Red: Excessive audio levels (overload / clipping)
- Adjustable output level
- LCD display with detailed RF and audio metering
Rack-mountable and featuring rugged metal construction, the BLX4R offers simple setup and intuitive controls. One-touch QuickScan frequency selection quickly locates the best open frequency in case of interference. Removable antennas allow for quick antenna distribution. For use with BLX® Wireless Systems.
Rack mount kit included.
Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.

BLX2/SM58
Handheld transmitter with SM58 capsule
Featuring an integrated SM58® microphone cartridge, the BLX2/SM58 Handheld Wireless Microphone Transmitter delivers wireless audio with professional clarity and reliability.
- Integrated microphone capsule design
- Lightweight, rugged construction
- -10 dB gain attenuation
- Color ID caps (available separately)
The BLX2/SM58 Handheld Wireless Microphone Transmitter works with BLX Wireless Systems.
Note: When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.