Speaker: Φ50 mmImpedance:16±15%ΩSensitivity: 106dB±3dBFrequency response:20 hz to 20khzMicrophone:Ø6.0×2.7mmMicrophone sensitivity: -38±3dBCable Length: 1.8mPlug: 1X3.5mmLarge 50mm drivers 90°foldable design Detachable microphoneDurable head beam can be bent at any angle