Beyerdynamic DT-790 XLR Socket, Hear-Talk Headset, Innovative twist joint for microphone arm, Cable with 4-pin. XLR socket, Colour: Black@+*Ear Piece:*@+@+, Dynamic closed, Circumaural, Nominal impedance 80 Ohm, Frequency range: 5 - 30,000 Hz, SPL: 100 dB, Weight without cable 470 g@+*Microphone:*@+@+, Dynamic, Directivity: Hyper-Cardioid, Frequency range: 40 - 12,000 Hz, Nominal impedance: 200 Ω