Brand NEW! Including 90 Days USA Factory Warranty. Product Highlights Electret Condenser Wide Frequency Response Battery Powered Only Single AA Battery Provides 5000 Hours For Live Sound and Broadcast The 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 for 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. Excellent cost/performance ratio Black finish AA battery power supply and XLR connector Sony ECM-44B Specs 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 (0 dB=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 (0 dB = 20 µP) 122 dB Power Requirements 'AA' Battery (1.5 VDC) battery power only, does not accept phantom power Output Impedance 250 Ohms, (+/-20% (1 kHz) balanced) Pad None Low Frequency Roll-Off None Cable Length 9.8' / 2.9 m Connector B type. Supplied with XLR connector in power supply unit (single AA size battery) Dimensions Microphone L x D: 0.6 x 0.34" / 14.5 x 8.5 mm Power Supply L x W: 5 x 0.82" / 126.5 x 20 mm Cable L x W: 10' x 0.1" / 3 m x 2.3 mm Weight Microphone: 0.07 oz / 2.0 g Power supply: 4.2 oz / 119 g Packaging Info Package Weight 0.9 lb Box Dimensions (LxWxH) 9.291 x 4.252 x 1.732" - All international buyers are responsible for all tax, duties and/or customs fees.