The thing with the red switch is a Disable Switch connected to the competition port. The whole OI folds and is able to be carried. The two joysticks are wired to one port and used for driving. Their buttons shift gears. We are using an Xbox 360 controller and a USB Chicklet for controlling the arm. There's actually room and wires for a second chicklet, but only one is mounted because we only needed one. There's also a thumb switch for autonomous modes and a panel of eight LED indicator lights, which works and no longer has tape over it marking things to be done.
The OI in back is last year's with a chicklet plugged in. It was used for testing our prototype while our new OI was being designed.