| CK77WR/CK577WR
Features | 
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Excellent tool for recording and broadcast
applicationsResistant to moisture, perspiration, and
salts | 
Dual-diaphragm transducer for suppression of
cable noiseSuperior sound, compatible to all popular
wireless transmitters | 
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| CK77WR/CK577WR
Specifications | 
| 
Polar pattern: omnidirectionalFrequency range: 20 to 20,000 HzSensitivity: 8 mV/Pa (-42 dBV)Max. SPL: 133 dB (k=1%)Equivalent noise level (CCIR 468-3): 37 dBSignal/noise ratio (A-weighted): 68 dBImpedance: 3500 ohmsRecommended load impedance: >10,000 ohms | 
Powering: <0.6 mACable: 1.5 m (5 ft.)Finish: various matte colorsNet weight: 0.4 g / 0.014 oz.Shipping weight: 85 g / 3 oz.Patent(s): Pressure compensation cavity for condenser
transducer (Patent no. AT 407.322, US 6.351.543) | 
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CK77WR/CK577WR Standard
Accessories | 
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Adhesive compound
H 39,Clip
H 40/1, Clip
H 41, Tie pin | 
Moisture shieldPB 77, AdapterW 77, Windscreen | 
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