beyerdynamic MM 1 (2023) - condenser measuring microphone for calibrating sound systems and measuring sound levels and frequency curves, characteristic: omnidirectional, frequency response: 20 - 20000 Hz (50 - 16000 Hz +- 1.5 dB), max. SPL: 122 dB, 15 mV/Pa, 12-48V phantom power, current consumption approx. 3.4 mA, dimensions: 133 x 19/9 mm, capsule diameter 9 mm, weight: 73 g, incl. bag, holder and measuring diagram