A clamping apparatus for a head-mounted display device is provided. The clamping apparatus comprises a pivot portion at a rear of the clamping apparatus, the pivot portion adapted to rotate in a rotation plane, a first side portion coupled to and extending in a forward direction from the pivot portion, a second side portion coupled to and extending in the forward direction from the pivot portion, wherein the pivot portion is adapted to adjust the first and second side portions through the rotation plane to a first position and maintain the first position until later adjusted, and a display device assembly coupled to the first side portion, the display device assembly extending in the forward direction from the first side portion.