Head Worn System - HM3 Omni-Directional Microphone

  • ClearScan automatically finds the clearest channel
  • EZsync one-step channel setup
  • HM3 omni-directional microphone
  • 14 hour battery life from two AA alkaline
  • Rugged metal transmitter
  • Metal receiver chassis with optional rack mount

The R300-E is a robust UHF wireless bodypack system, suitable for any application where the convenience of a wireless headworn microphone is required. The system's BP-300 rugged metal bodypack transmitter is simple to use, and is powered by two AA batteries. The system's light-weight, double-ear hook HM3 headworn microphone is comfortable for extended daily use, and provides the user the convenience of hands-free presentations or performances. The receiver's dual antenna diversity helps avoid signal dropouts, and its durable metal frame and chassis can either be used on a tabletop, or rack-mounted with optional rack mounting hardware.


Antennas Flexible TNC 1/2 Wave
Audio Frequency Response 80 Hz - 18kHz +/-2dB
Balanced Line Level Output (RMS Adjustable) 10 - 100 mV

Battery Life 14 hours with (2) AA alkaline typical
Case Material metal
Connector Type 1/4 inch unbalanced, 3-pin XLR balanced
Controls on/off, Set, Up, Down, Sync
Distortion (@ 1 kHz, 40 kHz deviation) Less than 1.0, 0.4 typical%
Diversity True Antenna
Dynamic Range greater than 95dB
Element HM-3 Omni-directional headworn
Family R300
Number of Channels 32 per band, 8 Simultaneous
Operating Temperature Range 5º - 45º C (41º - 113º F)
Polar Pattern Omnidirectional
Power Requirement 12-16 VDC, 500 mA max
Power Supply 12 VDC, 500mA max
Receiver Type Synthesized PLL
RF Frequency Range 16MHz
RF Output 8 mW typical
RF Sensitivity (12 dB SINAD) less than 1.0uV
Signal-to-Noise Ratio (A-weighted) greater than 100dB
Squelch Tone code plus Amplitude

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Complementary Products


Name Language Type Size Date
R300 Brochure EN PDF 561KB Jan 10, 2011 Download
Microphone Catalog EN PDF 5.69MB Jul 7, 2016 Download
R300 Folleto Español ES PDF 3.41MB Sep 27, 2012 Download
Name Language Type Size Date
HM-3 Engineering Data Sheet EN PDF 709KB Oct 14, 2014 Download
R300 Engineering Data Sheet EN PDF 908KB Oct 12, 2015 Download
Name Language Type Size Date
R300 flyer en Español ES PDF 634KB Sep 27, 2012 Download
Name Language Type Size Date
R300 Quick Start Guide EN PDF 118KB Sep 21, 2015 Download
R300 User Guide EN PDF 897KB May 3, 2016 Download
Name Language Type Size Date
Audio 101 - Microphone Basics EN PDF 4.25MB Dec 13, 2012 Download
Audio 101 - Wireless Microphone Basics EN PDF 3.52MB Dec 13, 2012 Download
Name Type Size Date
R300-E Set PNG PNG 1.84MB May 4, 2017 Download
R300BPFamily PNG 683KB May 4, 2017 Download
HM3 PNG PNG 1.9MB May 4, 2017 Download

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