The AKG Pro Audio CM311 AESH SHURE Head-Worn Condenser Microphone is the industry standard head-worn electret condenser microphone. The CM-311A/SH utilizes Crown's unique Differoid technology, effectively isolating desired vocals from unwanted background noise.
Differoid Noise Canceling TechnologyDifferoid noise canceling rejects ambient signals at a distance, improving the signal-to-noise ratio.
FiltersElectronically controlled bass roll-off
Power48-Volt phantom powered or 9-volt battery
Lightweight Headset DesignBehind-the-ear design is completely lightweight, adjustable, and will conform to any size head.
AKG Pro Audio CM311 AESH SHURE Head-Worn Condenser Microphone Features:
Differoid Noise-cancelling Technology
For the highest ambient noise rejection.
Cardioid Polar Pattern
For outstanding gain before feedback.
Condenser Capsule with Internal Shock Mount
For efficient rejection of mechanical and body noise.
Robust Headband Construction
For maximum comfort and freedom of movement.
Brand AKG Manufacture SKU CM311 W/TA4F UPC 885038025306 Transducer Electret Condenser Polar Pattern Cardioid Frequency Response 50Hz-17kHz Dynamic Range (Typical) Not specified by manufacturer Signal-to-Noise Ratio 68dB @ 94dB SPL Maximum Input Sound Level 148dB SPL produces 3% THD Power Requirements 48V phantom or 9v battery Output Impedance 75 ohms Output Connectors Shure Wireless Connection Pad No Low Frequency Roll-Off Electronically controlled Dimensions 5.5 x 7 x 3" (13.97 x 17.78 x 7.62cm) (WxHxD)