Speaker size: 50mm Sensitivity: 115 +/- 3dB Frequency range: 20 Hz-20KHz Microphone: 6.0x 2.7mm Microphone sensitivity: -38 +/- 3dB Directionality: Omnidirectional Cable length: 2.1M +/- 0.15 LED working voltage: DC 5V +/- 5% Headphone jack: USB + 3.5mm 4-pin System support: 32-bit and 64-bit Win 7 / Win8 / Win8.1 / Win 10 / XP note: 1. When connecting to an older version of the Xbox One controller, an additional Microsoft adapter (not included) is required. If you want to use the headset and microphone at the same time, you need to use a 2.1 to 2 3.5mm jack splitter cable (supplied) when connecting to the PC. 3. The USB interface is only used to power the LED lights to highlight the atmosphere of the game.