KR STEREO SOUND G9000
Driver unit: 40MM
Audio Jack: 3.5MM/USB
Surround Sound: 7.1 Surround
Frequency range: 12-22000HZ
Power handling capacity: 50 mW
Impedance: 32 ohms at 1 kHZ
Sensitivity: 105+/-3dB
Microphone sensitivity: -38+/-3dB
System support: The 32-bit and 64-bit Win 7/Win8/Win8.1/Win 10/XP