The AMT HR-1 is a condenser microphone designed for easy use for the harmonica player. The harmonica can be held conventionally. Its compact cylindrical design makes it easy to hold in the same hand with the instrument. Its rugged construction of anodized aviation aluminum allows it to withstand high impact, while being lightweight and non-corrosive. The HR series can reproduce delicate and soft passages with superior quality, yet can handle sound pressure levels well above 141dB. The AMT HR1 can be used with most major brand wireless belt pack transmitters and receivers. With the AMT Interface, the microphone can plug directly into the interface which then plugs directly into most major brand wireless units. Requires phantom power. Condenser microphone for harmonica / mouth harp Compact cylindrical design Handles sound pressure levels well above 141dB Rugged and lightweight anodized aviation aluminum construction Includes belt-pack preamp and hardshell Blo-mold protective case AMT HR1 Harmonica Microphone Element: Condenser Polar Pattern: Cardioid Frequency: 30Hz - 18kHz Sensitivity: -68dB + 4dB Impedance: 600 Ohms* Power: 9 Volt Battery Max input SPL: 141 dB Dimension: 4.25" Cable: 3' 6" Weight: 25 grams Shown harmonica is not included The harmonica microphone is brand new, but this can't be selected