Avantone CV-28, Small Capsule Tube Condenser Microphone, Polar Pattern (interchangeable capsules): Omni, Cardioid, Hyper-Cardioid), frequency response: 20Hz - 20kHz (+/-3dB), 136dB maximum SPL, 80Hz hi-pass switch (6dB/octave), -15dB attenuation switch, Tube: Select Military-Grade 6J1B, included accessories: Capsules, Power Supply, Metal Case with wooden box and shockmount.