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he Sony ECM-44B Lavalier Microphone makes the exceptional quality of Sony's electret condenser microphones available for budget conscious productions, and a variety of sound reinforcement requirements, such as lectures and demonstrations. Measuring only 8.5 x 14.5mm, the ECM-44B reduces the visual distraction to the audience. The ECM-44B can be depended upon for clean, bright, yet natural reproduction. To maintain its low cost, this microphone operates on a single AA (does not accept phantom power) battery for over 5000 hours of service.
Transducer Electret Condenser Polar Pattern Omnidirectional Frequency Response 40 Hz to 15 kHz Sensitivity -53.0 dB ±3 dB Dynamic Range 90 dB or more Signal-to-Noise Ratio 62 dB or more Noise Inherent Noise (0dB=20µPa): 32 dB SPL or less Induction Noise (from External Magnetic Field): 5 dB SPL or less Wind Noise: 40 dB SPL or less (with windscreen, at 2 m/s) Maximum SPL (dB SPL)(0 dB=20µP) 122 dB Power Requirements 'AA' Battery (1.5v DC)battery power only, does not accept phantom power Output Impedance 250Ω, (+/-20% (1kHz) Balanced)