About this item
H9 (512–542 MHz) UHF FREQUENCY BAND: Operates on the H9 (512–542 MHz) UHF frequency band for dependable audio transmission in regions where this spectrum is authorized. Verify local compliance before ordering.
PROFESSIONAL RANGE & ALL-DAY POWER: Provides reliable audio transmission up to approximately 300 ft (100 m) line-of-sight. The BLX1 bodypack transmitter operates up to 14 hours using two AA batteries under typical conditions.
COMPLETE RACK-MOUNT EARSET SETUP: Includes BLX4R rack-mount receiver, BLX1 bodypack transmitter, and MX153 omnidirectional earset mic with windscreen and clip. Also includes rack mounting hardware, power supply, 2 AA batteries, and user guide.
IDEAL FOR HANDS-FREE PRESENTATION: The lightweight MX153 earset microphone provides discreet placement and stable fit for speech applications in conferences, classrooms, houses of worship, and corporate presentations.
SHURE ENGINEERED RELIABILITY: Supports up to 12 compatible systems per frequency band in optimal RF environments and features QuickScan frequency selection to locate a clear channel quickly.                                                                                                                                         
Product Description
The Shure BLX14R/MX53 Wireless Earset Rack Mount System delivers dependable UHF audio performance designed for presenters, educators, and event hosts who require hands-free speech capture with rack-mounted receiver integration. The system includes the BLX4R rack-mount receiver, BLX1 bodypack transmitter, and MX153 omnidirectional earset microphone. The lightweight earset design sits securely over the ear while providing clear and natural speech reproduction. The BLX1 transmitter operates for up to 14 hours using AA batteries and provides audio transmission up to approximately 300 ft (100 m) line-of-sight under typical conditions. With QuickScan frequency selection, the receiver automatically finds open frequencies to help reduce interference. Supporting up to 12 compatible systems per frequency band, the BLX14R/MX53 allows flexible expansion in larger venues such as conference halls, classrooms, houses of worship, and corporate event environments. Built with Shure’s professional wireless engineering, the BLX14R/MX53 provides reliable performance for clear, hands-free presentation audio.