: Is the radio range (approx 7,5 mt, I think) realistic even with physical obstacles ? Yes, it's excellent! : How long is the cable that connects the receiver to the usb port on the mac ? About 2, or 3 feet, I guess. It's not long. : Does the system cause audio interferences of any kind ? I don't think so. Nothing strange has happened since I started using the mouse. Imagine you run PT like doing a presentation! 