Shure BLX14R/MX53 - Wireless Rack-mount Presenter System with MX153 Earset Microphone

Shure BLX Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it's the most accessible way to own the stage.System Includes• MX153 Earset Headworn Microphone• BLX1 Bodypack Transmitter• BLX4R Rack Mount ReceiverFeatures• Up to 12 compatible systems per frequency band (region dependent)• One-touch QuickScan frequency selection quickly locates the best open frequency• Up to 14 hours of continuous use from 2 AA batteries (included)• Up to 300 ft (91 m) operating range for total wireless freedom• XLR and 1/4" output connectors• Rugged and reliable Shure construction     FCC CONSUMER ALERT (U.S.)Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate