【Good compatibility:】Plug and play, no driver required, this USB volume control knob can start as soon as you insert it into your device. Compatible with boseQC45 QC35II2 generation gaming headset. | 【Computer controller:】By turning the top knob on the desktop volume controller, you can adjust the master volume, including the volume of any program currently in use | 【Microphone monitoring:】With the microphone monitoring function, you can hear your own voice through the headset. Press the button on the front of the controller to rotate the four monitoring levels, namely off, low, medium and high. | 【Ingenious design:】Our multimedia control is made of solid metal, Feels very good in the hands and its matte black. | 【Quality Service:】We always strive to offer the best customer service and please don't hesitate to reach out if there is anything we can help you with.