Boundary Series: 210 The Astatic 210 boundary series is a miniature-boundary microphone developed for installation in protection, normal tracking and statement programs. The result level is diverse from -50dBv (3.2mV) to -10.5dBV (300mV) at 1μBar which is developed to program with electronic cams, video camera and other statement and producing devices. Astatic s internal sound limiter build tames great sound pressure levels and improves intelligibility by defending the sound indication from muffling delicate producing build in electronic cams and electronic camera. The incorporated volume control is located on the side of the microphone and is protected from tampering when the microphone is installed. The incorporated 150Hz, 6dB/oct high-pass filter attenuates unwanted low regularity energy. Specifications: Operating Principle: Condenser Polar Pattern: Omnidirectional Frequency Response: 120Hz -18KHz Sensitivity: Adaptable, -50dBV (3.2mV) to -10.5dBV (300mV) @1μBar Impedance: 50 ohms Maximum SPL: 100dB Self Noise: 22dBA Power Requirements: 8 to 18VDC, 70mA Connector: 3.5 mm terminal prevent connect with 180 level wire-to-plug positioning, recognizing 30 to 14AWG dimension cable. Polarity: Good stress on diaphragm goes along to positive current on pin 2. Finish: Resilient matte-white urethane Dimensions:(See drawing) Net Bodyweight [Mass]: 2.4oz [.07Kg] Packaged Bodyweight [Mass]: 5.4oz [.15Kg] RF Immunity: Satisfies or surpasses EN55103-2, E1, E2, E3 and E4