The goal of this test was to measure the overall added width of the device while it is attached to the wheelchair to make sure that the overall added width does not exceed the max value of Specification G4. All parts of the device were attached to the wheelchair and then the outermost protruding part of the device was measured and recorded.The user interface is the only component that exceeds the original profile of the wheelchair. The added width of the user interface is 3 in. This is under the maximum value set by Specification G4 of 4 in.