The Shure WH20XLR is a rugged, lightweight, dynamic headset microphone that provides high-quality voice pickup. It fits securely for active microphone users, such as aerobics instructors and musicians, with low visibility for stage appearances.

The cardioid (unidirectional) pickup pattern provides greater gain-before-feedback and isolation from ambient noise and other unwanted sound sources. 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 mics during close-talk operation.

Features

• Includes 3-pin male XLR connector w/ detachable belt clip
• Lightweight wireframe and elastic headband adjust for a secure, comfortable fit
• Extra-strong, small-diameter attached microphone cable resists breakage
• Collapsible microphone boom for easy storage and transportation
• Smooth, natural frequency response comparable to high-quality dynamic hand-held vocal microphones
• High input clipping level eliminates overload distortion
• Reliable at temperature and humidity extremes
• Supplied foam windscreen and clothing clip

Specifications

• Capsule 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: Positive sound pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 of microphone output XLR connector
• Cable: Attached 1.22 m (4 ft), small-diameter, shielded, PVC-jacketed, two-conductor 
• Cable Connector: 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): 98g (3.5 oz)

• 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%