Shure PGA31

• Wearable wireframe headset fits securely for multi-instrumentalists and active performers
• Permanently-charged electret condenser element for detailed, crisp vocals
• Unidirectional (cardioid) polar pattern rejects unwanted noise for improved sound quality and higher gain-before-feedback
• Flexible gooseneck design and discrete adjustment options optimize microphone positioning for further source isolation
• Included windscreen tames plosives for clean and intelligible sound reproduction
• Available with a wide variety of Shure wireless systems, renowned for ease-of-use and reliable performance
• Tailored frequency response primed for great sound on vocals
• Legendary Shure precision engineering for durability and performance

The PGA31 performance headset microphone for general, speaking and performance use is a permanently-biased electret condenser microphone. Engineered to provide maximum versatility and reliable performance in a wide array of conditions at an affordable price.
The wearable design offers improved comfort and a secure fit for hands-free operation in any situation, while the unidirectional (cardioid) pickup pattern provides excellent off-axis rejection for higher gain-before-feedback when using a stage monitor.
Type Electret Condenser
Frequency Response 60 to 20,000 Hz
Polar Pattern Unidirectional (Cardioid)
Output Impedance @ 1 kHz, typical 600 Ω
Audio Output Level -50 dBV/Pa
Signal-To-Noise Ratio[1] @ 1 kHz 66 dB
Maximum SPL[1] 1000 Ω load, @ 3% THD 145.0 dB
Dynamic Range[1] @ 1 kHz, 1000 Ω load 117.0 dB
Equivalent Output Noise[1] Typical, A-Weighted 28 dB
Power Requirements +5 V DC (nominal), 10 V maximum (DC bias)
Polarity Positive pressure on diaphragm produces positive voltage on pin 3 with respect to pin 1
Cable 1.3 m (50 in.)
Connector TA4F