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ElectroVoice R300E



Wireless Omnidirectional Headset Microphone System

Sold in Frequency Band C (516 to 532 MHz)

1 in stock

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The Electro-Voice R300-E is a cost-effective wireless omnidirectional headset microphone system well suited for tabletop use, or as part of an AV installation, in small- to medium-sized conference centers, educational facilities, and performance spaces.

The R300-E includes the R300 antenna-diversity receiver along with the BP-300 bodypack transmitter and an HM3 headworn condenser microphone. The mic's forgiving omnidirectional polar pattern picks up sound from all around the capsule, helping to ensure consistent levels even when the talent turns away from the capsule. The receiver has a 150' operating range and features 32 pre-programmed frequencies to scan for optimal transmission, along with removable antennas that allow the user to rackmount the unit (requires mounting kit and antenna cables—available separately).

The ClearScan feature on the R300 automatically searches for the ideal operating frequency, while the EZ Sync button locks the transmitter to the correct channel via infrared. The system's antenna-diversity technology helps to reduce noise and interference by comparing the incoming signals on the two antennas and using the stronger one. The receiver features both 1/4" phone and XLR outputs on the rear, and a power supply is included. The HT300 transmitter operates for up to 14 hours on a pair of AA alkaline batteries.


  • Designed for small venues and educational, conference, and performance spaces
  • ClearScan—finds the clearest channel available with the touch of a button
  • EZsync—infrared channel transfer from receiver to transmitter for easy and error-free setup
  • HM3 headset microphone for hands-free presentations and performances features an omnidirectional condenser element for clear and consistent speech and vocals—even when the talent turns away from the capsule
  • Rugged metal bodypack transmitter with Mute/On/Off switch, backlit LCD display, and battery gauge
  • 14-hour battery life from two AA alkaline batteries
  • 32 preset channels, with compatible groups of 8 channels for simultaneous use
  • Detachable half-wave TNC antennas enable use with optional APD4+ antenna distribution system, which can provide antennas and power for up to 4 receivers
  • Metal receiver chassis with optional rackmount ears and front-mount antenna cables
Connector Type 1/4 inch unbalanced, 3-pin XLR balanced
Family R300
Operating Temperature Range 5º – 45º C (41º – 113º F)
Case Material metal
RF Frequency Range 16MHz
Signal-to-Noise Ratio (A-weighted) greater than 100dB
Power Requirement 12-16 VDC, 500 mA max
Controls on/off, Set, Up, Down, Sync
Antennas Flexible TNC 1/2 Wave
Number of Channels 32 per band, 8 Simultaneous
Diversity True Antenna
Squelch Tone code plus Amplitude
Receiver Type Synthesized PLL
RF Sensitivity (12 dB SINAD) less than 1.0uV
Audio Frequency Response 80 Hz – 18kHz +/-2dB
Balanced Line Level Output (RMS Adjustable) 10 – 100 mV
Distortion (@ 1 kHz, 40 kHz deviation) Less than 1.0, 0.4 typical%
Dynamic Range greater than 95dB
Power Supply 12 VDC, 500mA max
Polar Pattern Omnidirectional
Battery Life 14 hours with (2) AA alkaline typical
RF Output 8 mW typical
Element HM-3 Omni-directional headworn
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