The AT8024 also features a 3 position adjustable input pad (-20 dB, -10 dB, 0 dB) that captures both soft and loud bits of sound without distortion. The microphone's switchable low-frequency roll off reduces pickup of undesired ambient noise, room reverberation and mechanically coupled vibrations. The AT8024 is powered by one AA battery (included), performs with a high max SPL, and features an integral camera shoe mount. Includes: AT8024 stereo/mono camera mount shotgun microphone with shoe mount Windscreen. Fuzzy windscreen . AA battery . Audio-Technica AT8024 Stereo / Mono Camera Mount Shotgun Microphone Features: For use with DSLR and other video cameras . Delivers sound superior to cameras' internalmicrophones . Selectable line cardioid mono or mid side stereo modes provide the flexibility to capture high resolution audio in any environment . Handles loud sound sources without distortion . Three position adjustable input pad and switchable low frequency roll off . Integral rubber shock mounts isolate the microphone from vibration and mechanical camera noise . Compact, lightweight design with integral shoe mount . Red/green LED power indicator . Audio Technica AT8024 Stereo / Mono Camera Mount Shotgun Microphone Specifications: Element: Fixed charge back plate, permanently polarized condenser . Polar Patterns: Line cardioid, LR stereo Frequency Response: 40 Hz - 15 kHz . Low Frequency Roll-Off: 80 Hz, 12 dB/octave . Open Curcuit Sensitivity: -37 dB (14.1 mV) re 1V at 1Pa (Mono & LR Stereo). Impedance: 50 ohms . Maximum sound input Level: 128 dB SPL, 1 kHz at 1% T.H.D. 148 dB SPL, with 20 dB pad. Dynamic Range (typical): Mono: 106 dB, 1 kHz at Max. Weight: 4 oz. (114 g). Dimensions: 6.77" L x 0.94". Diameter (172 x 24.0 mm). Output Connector: 3.5 mm.