Electret cardioid headband microphone for vocal and speech applications. It features very comfortable to wear, secure fit also for sports applications, high-quality electret cartridge and 3.5 mm screw-in mono plug for connection to optional phantom power supply adapter (EMA-20) or pocket transmitter. Audio frequency range: 100-12000 Hz, Nominal impedance: 2,2 kΩ, Sensitivity: 8,5 mV/Pa, Max. sound pressure: 110 dB, Admiss. ambient temp.: 0-40 °C, Weight: 40 g, Cable: 0,8 m, Connection: 3.5 mm mono plug, screw-in, 7.8 mm outside thread