- Type: Dynamic, Close-Talking
- Frequency Response: (at 8 mm) 50 to 15,000 Hz
- Polar Pattern: Cardioid (unidirectional) response -- uniform with frequency, symmetrical about axis
- Impedance: Microphone rating impedance is 150 ohms (200 ohms actual)
- Output Level: (close talked (at 12.5 mm (1/2 inch)) at 1,000 Hz)
- Open Circuit Voltage: -67.0 db/Pa (0.45 mV) (1 Pa = 94 dB SPL)
- Hum Sensitivity: 38.4 dB equivalent SPL in a 1 millioersted field
- Polarity
- WH20QTR as a wired microphone: Positive sound pressure on diaphragm produces positive voltage on tip with respect to sleeve (ground) of microphone output phone plug connector.
- WH20QTR, WH20TQG used with Shure Wireless Systems
- 1/4-inch Phone Jack Receiver Outputs: Positive sound pressure on diaphragm produces positive voltage on tip of receiver output connector.
- 3-pin XLR Receiver Outputs: Positive sound pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 of low-impedance output connector, and on tip of Aux output connector.
- WH20XLR as a wired microphone: Positive sound pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 of microphone output XLR connector.
- Environmental Conditions
- Operating Temperatures: -18 to 60 degrees C (0 to 140 degrees F)
- Storage Temperatures: -29 to 74 degreesC (-20 to 165 degrees F)
- Humidity: 0 to 95%
- Cable: Attached 1.22 m (4 ft), small-diameter, shielded, PVC-jacketed, two-conductor.
Cable Connector:
- WH20QTR: Right-angle 1/4-inch phone plug
- WH20TQG: Female 4 pin mini connector (TA4F)
- WH20XLR: Three-pin XLR with detachable belt clip
- Construction: Black thermoplastic housing; stainless steel grille; black TEFLON®-coated stainless steel wireframe; flexible plastic-clad monel gooseneck; rubber/nylon elastic headband
- Net Weight (including connector): 100g