Permanently polarized condenser capsule • Cardioid polar pattern • Boundary layer microphone with detachable cable The BLM41 is a permanently polarized condenser microphone with a cardioid polar pattern. Transducer type: Backplate Electric condenser • Frequency response: 50Hz-20kHz • Sensitivity: -35dB ±3dB • Maximum SPL for 1% THD: 130 • Self Noise: 20 • Nominal Impedance: 100 Ohm • Recommended Load Impedance: 1000 • Phantom power : 9-52V DC Phantom • Current drain: 3 mmA • Connectors: 3 pin Mini-XLRM on microphone; 3 Pin Male XLR on cable • Color: black • Weight: 0.27