Neumann U87 Ai Studio Set ni, Condenser Studio Microphone, Pressure gradient transducer, Polar pattern: Omnidirectional, cardioid, eight, Switchable 10 dB attenuation, Nominal impedance 200 Ohm, Frequency response 20 - 20,000 Hz, Max. SPL (sound pressure level) for k < 0.5% with pre-attenuation: 127 dBk < 0.5%: 117 dB (cardioid), Max. SPL (sound pressure level) for k < 0.5% with pre-attenuation: 127 dB, 48 V phantom power required, Dimensions (diameter x length): 56 x 200 mm, Weight: 500 g, Colour: Nickel, Incl. EA87 elastic mount and wooden case