IOGear 2-Ports External USB KVM With Audio Switch Model 'GCS72U' Used
No Instruction Booklets or any Accessories.

The IOGEAR's GCS72U KVM Switch with Audio allows users to share a VGA monitor, a USB mouse, a USB keyboard, a set of powered speakers and a mic between two computers. Users can switch between computers using a manual pushbutton switch located on a wired remote that can be placed on your desk for convenience.

From the Manufacturer