Electret headband microphone with back electret microphone cartridge, cardioid polar pattern, 3-pole mini XLR inline jack and gooseneck cartridge arm. Microphone is compatible with pocket transmitters TXS-...HSE with 3-pole mini XLR connection. External power supply, e.g. via phantom power supply adapter EMA-1 or EMA-300P. Microphone windshield. Audio frequency range: 50-16000 Hz, Nominal impedance: 2 kΩ, Sensitivity: 5,6 mV/Pa, Max. sound pressure: 130 dB, Admiss. ambient temp.: 0-40 °C, Weight: 28 g