The WH20 has a cardioid (unidirectional) pickup pattern. This provides greater gain-before-feedback and isolation from ambient noise and other unwanted sound sources, such as air conditioning, musical instruments, and loudspeakers. A carefully shaped frequency response includes a voice-frequency presence peak and a low-frequency roll off to compensate for the proximity effect inherent in cardioid microphones during close-talk operation. An integrated elastic CROAKIES headband secures the headset comfortably. The headband, wireframe, and gooseneck are adjustable to accommodate any head size or shape.
Transducer | Dynamic, close-talking |
Polar Pattern | Cardioid |
Frequency Response | 50 Hz to 15 kHz, Measured @ 0.3" (8.0 mm) |
Power Requirements | Dynamic (Requires NO Phantom Power) |
Impedance | 150 ohms (200 ohms actual) |
Output Level | Open Circuit Voltage: -67 dB/Pa (1.48' / 0.45 m) 1 Pa = 94 dB SPL Close-talked (@ 0.50" / 12.5 mm) @ 1,000 Hz |
Electromagnetic Hum Sensitivity | 38.4 dB equivalent SPL in a 1 mOe field |
Operating Temperature | 0 to 140°F (-18 to 60°C) |
Storage Temperature | -20 to 165°F (-29 to 74°C) |
Connector | TA4F connector for Shure bodypack transmitters |
Cable Length | 4.0' (1.2 m) |
Dimensions | Not specified by manufacturer |
Weight | 2.2 oz (63 g) including connector |
Reviews Shure WH20 Headset Mic with TA4F Connector for Shure Bodypack Transmitters