the t.bone TB 312 S, Dynamic gooseneck microphone, Ideal for talkback or fixed installations, ON/OFF switch on the 3-pin XLR connector, Directional characteristic: Cardioid, Frequency range: 50 Hz - 18 kHz, Field sensitivity: -56 dB (+/- 3 dB @ 1kHz), Impedance: 500 Ohm, Length: approx. 40 cm, Weight: 208 g,