Sound: Virtual Surround 7.1 Frequency Response: 20Hz - 20KHz Speaker Size: 40mm Speaker Sensitivity: 110dB ± 3dB Microphone Type: Omnidirectional Microphone Size: 6 x 5mm Microphone Sensitivity: -51dB ± 3dB Backlight: RGB Connectors: USB Cable length: 2 m Operating system support: Windows 7 or newer