Beyerdynamic DT-790, Hear-Talk Combination, Innovative twist joint for microphone arm, Colour: Black / Blue, Cable with open end *no plug*@+*Phones:*@+@+, Dynamic closed, Circum-aural, Nominal impedance 80 ohms, Frequency range: 5 - 30,000 Hz, SPL: 100 dB, Weight without cable 470 g, *Microphone:*, Dynamic, Directional characteristic: Hyper-Cardioid, Frequency range: 40 - 12,000 Hz, Nominal impedance: 200 Ohms