Hama Headset "HS-10 Camouflage". Device connectivity: Wired, Cable length: 2.4 m. Headphone frequency: 20 - 20000 Hz, Impedance: 32 Ом, Headphone sensitivity: 113 dB. Microphone frequency: 15 - 20000 Hz, Microphone sensitivity: -58 dB. Connector(s): 3.5 x 2