SGC-598 TAKSTAR Shotgun Microphone Condenser microphone with high sensitivity specifically made for cameras Ambient noise can be effectively reduced by the cardioid directivity characteristic. A 200Hz bass filter and an optional +10dB sensitivity tone up satisfy the needs of various applications. Camera mechanical noise and other vibration noise can be reduced by shockproof design. Features of a rugged alu mic housing EMI resistance that works With a 1.5V AA alkaline battery, it can play for up to 100 hours. Indicator of low power Details Principle of Transducers: Directivity of Back Electret Condensers Qualities: The frequency of the heart Reaction: 50 Hz–16 kHz At 1KHz, the sensitivity is -32dB±3dB (0dB=1V/Pa). Tone Up Sensitivity: +10dB Bass Filter: 10dB/octave, 60Hz Impedance of Output: 2000Ω±30% An AA battery with a 1.5V voltage requirement 160g is the net weight.