Shure BRH31M Lightweight Single-Sided Headset

Single-sided broadcast headset delivers natural, highly-intelligible vocal reproduction. It features a closed-back, supra-aural design, lightweight construction, an adjustable, comfortable headband, and a 270-degree positioning range.

Designed for broadcast and media production applications, the ultra-lightweight and durable BRH31M features a single supra-aural earcup design that enables the user to hear external audio cues. Its dynamic cardioid microphone offers natural, clear vocal reproduction and pivots 270 degrees for left or right wear.

The adjustable headband includes a cushioned temple pad for a comfortable, ergonomic fit. Multiple versions of cable terminations allow for connection to a variety of devices.

• Supra-aural design with ultra-lightweight construction
• Dynamic microphone with cardioid polar pattern and frequency response optimized for communication in loud environments
• Adjustable headband with cushioned temple pad for comfortable, ergonomic fit
• Flexible boom microphone with 270-degree pivot range for left- or right-side wear and precise positioning
• Single-side, Kevlar®-reinforced cable for increased durability
• Robust design created under rigorous Shure quality standards to withstand the demands of everyday professional use

Weight (Without Cable)

• Net: 81 g (2.9 oz.)

Weight (With Connector)

• Net: 125 g (4.4 oz.)

Cable

• BRH31M: 1.8 m, non-PVC, unterminated
• BRH31M-NXLR4F: 1.75 m, non-PVC, 4-pin female XLR
• BRH31M-NXLR4M: 1.75 m, non-PVC, 4-pin male XLR
• BRH31M-NXLR5M: 1.75 m, non-PVC, 5-pin male XLR

Operating Temperature

• 18°C to 60°C (0°F to 140°F)

Storage Temperature

• -29°C to 74°C (-20°F to 165°F)

Relative Humidity

• 0% to 95%

Microphone Type

• Dynamic, neodymium magnet, 13 mm

Polar Pattern

• Cardioid

Microphone Frequency Response

• 50 Hz – 15,000 Hz

Output Impedance

• 145 Ω

Sensitivity (at 1 kHz, open circuit voltage)

• -66.5 dBV/Pa (0.47 mV/Pa)

Polarity

• Positive pressure on the diaphragm produces positive voltage on the red wire with respect to the black wire.

Headphone Transducer Type

• Dynamic with neodymium magnet

Driver Size

• 30 mm

Headphone Frequency Response

• 150 Hz – 12,000 Hz

Headphone Sensitivity (at 1 kHz)

• 101 dB SPL/mW

Headphone Impedance (at 1 kHz)

• 220 Ω

Maximum Input Power

• 200 mW