Specifications Acoustic Principle - Line GradientPolar Pattern - Super-cadioid Frequency Response - 40-20,000Hz Sensitivity - -32dB +/- 3dB @ 1KHz Signal to Noise Ratio - 80dB Connector - One 3.5mm TRS Dynamic Range - 120dB Output Impedance - 200 Ohms Power - Two AA Batteries (not included) Average Run-time - 120 Hours Audio Level Switch - -10dB, 0dB, +10dB High-Pass Filter - Flat, 80Hz Construction - ABS Dimensions - 8.2 x 4 x 2 - (209x103x50mm) Weight - 4.7oz (132g)