Sony ECM-44B lavalier microphone

Affordable omni-directional lavalier Electret condenser microphone
Sony has produced over five million professional ECM (Electret Condenser Microphones) microphones and the ECM-44 is the affordable, general voice model. It provides good sound quality and is widely used in business presentation systems and TV production. The ECM-44 is available in four versions, featuring different connector types. This model, ECM-44B, is the XLR version with power barrel for use as a wired microphone.

Convenient to use
The ECM-44 is an affordable alternative to the traditional hand held microphone and being 'hands free' it allows the presenter to concentrate on her/his performance

Professional image
Either 'in front of camera' or at a business presentation the ECM-44 creates a professional and tidy image.

Easy to use
It can often be difficult to achieve good quality voice pick-up but the ECM-44 can help get good results. The microphone's capsule is designed for general voice pick-up with a mid-frequency emphasis characteristic and a suitable frequency response.

Specifications:
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