Enhanced Audio Control: Easily manage your audio levels with this sleek USB volume control knob. Perfect for PC users, it offers a smooth volume adjustment experience without the need to access software settings. Plug and Play: No drivers required, simply connect the knob via the included USB cable and start adjusting your audio levels immediately. it provides a versatile solution for all your audio needs. Compact and Portable: Designed with portability in mind, this audio controller is small enough to fit in any setup without cluttering your space, making it ideal for both home and office use. Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:Black Material:Aluminum Alloy Package Contents: 1 x USB Volume Control Knob Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.