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Electro-Voice R300-E
Wireless Headworn Microphone System

Head worn system with HM3 omni‑directional microphone

Warranty: 1-year-carry-in repair/replacement warranty for manufacturing defects

Availability: Please contact us to check availability and current pricing

SKU: R300-E-A Category:

Key Features

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


R300-RX-A Receiver

Type Synthesized PLL
Frequency Range (RF) 618 – 634 MHz (A Band)
Number of Channels 32
Modulation ± 40 kHz
Antennas Flexible TNC 1/2 Wave
RF Sensitivity <1.0 μV for 12 dB SINAD
Image Rejection > 55 dB
Squelch Tone Code plus Amplitude
Power Requirements 12-16 VDC, 500mA max
Operating Temperature 5°C to 45°C (41°F to 113°F)
Dimensions 43 mm H x 206 mm W x 210 mm D (1.72 in H x 7.8 in W x 8.0 in D)
Frequency Response 80 Hz – 18 kHz ± 2 dB
Balanced Output 20 dBV (max @ 40 kHz deviation)
Unbalanced Output Adjustable 8 mV to 0.755V RMS
Distortion < 1.0%, 0.4% typical (ref 1 kHz, 40 kHz deviation)
Signal-to-Noise Ratio > 100 dB A-Weighted
Dynamic Range > 95 dB

BP-300-A Bodypack Transmitter

Frequency Range (RF) 618 – 634 MHz (A Band)
Radiated Output 8 mW typical
Back Lit LCD Display Channel, Frequency, Mute, and Battery Level
Power Requirement Two AA batteries
Battery Life (Typical) > 14 hours with AA alkaline typical
Antenna Flexible external 1/4 wave
Dimensions 84 mm H x 66 mm W x 23 mm D (3.3 in H x 2.6 in W x 0.89 in D)

HM-3 Headworn Microphone

Polar Pattern Omni-directional
Connector TA4F (Pin 1 Ground, Pin 2 Mic Input, Pin 3 +5V bias, Pin 4 +5V thru 2.2k Ω)


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Wireless Headworn Microphone System”