Austrian Audio OC818 Dual Set Plus, Stereo Set of Dual-Output Large-Diaphragm Condenser Microphones, Switchable directional characteristics: omnidirectional, cardioid, supercardioid, figure eight, 255 intermediate levels via app, Freely configurable directional characteristics via PolarDesigner plug-in for Win & Mac, Real-time access to directional characteristics via optional OCR8, Bluetooth dongle (Art.#467336# - not included) and PolarPilot app for Android & iOS, Handmade CKR12 ceramic capsule based on the CK12 capsule, Frequency range: 20 - 20,000 Hz, Sensitivity: 13 mV / Pa, Output impedance: 2x 275 Ohm (balanced), Input impedance: 1 kOhm, Max. sound pressure level: 148 dB / 158 dB (with pad), Inherent-noise: 9 dB SPL (A), Signal-to-noise ratio: 84 dB, Low cut filter: 40, 80 & 160 Hz, Pad: -10 dB & -20 dB, Dimensions (OC818 microphone): 157 x 63 x 35 mm, Weight (OC818 microphone): 360g, Includes 2 elastic brackets, 2 mini XLR adapters, 2 microphone clips, 2 windscreens, transport case and adjustable stereo rail, HAndmade in Vienna@+*Note:* requires 48 V phantom power.