Soyuz SU-011, small tube condenser microphone, Directional Pattern: Cardioid (swappable), Frequency Range: 20 - 20000 Hz, Sensitivity: cardioid 12 mv/Pa, Impedance: 150 Ohms, SPL -120 dB Equivalent Noise: less than 18 dB (a-weighted), Tube Type: 6S6B, Power: Dedicated power supply- BP-011, includes 1 SU-011 wooden storage case, 1 BP-011 power supply with power cable, 1 XLR microphone cable (5 meters) and 1 SU-011 microphone clip, Handmade in Russia, Dimensions length x diameter: 123 x 26 mm, Weight: 130 g