ECR688 is an electret condenser short shotgun microphone with 19mm gold plated thin Mylar diaphragm, designed for recording, as well as sound reinforcement applications on broadcasting and film/TV/video. It provides very much good off axis rejection

FEATURES:Wide dynamic range and frequency response for accurate sound reproduction across the audio spectrum

Balanced transformerless output for increased immunity to noise over long cable runs foam windscreen avoid wind noise

9V to 52V DC phantom power or a 1.5V AA battery power requirement provide convenience applications at any condition especially outdoor recording or interviews

Polar pattern:Hyper-cardioid
Frequency Response:60~15000Hz
Sensitivity:-40dB(10mV/Pa)+/-2dB
Output impedance: 200 ohms SPL(1KHz,distortion<1%): 114dB
Equivalent noise level to IEC 268-4(A Weighted): 24dB-A
S/N ration re 1Pa: 70dB
Power requirement: 9-52v phantom power or DC1.5V
Diameter :22mm
Length :362mm