You can secure the bttn to a desk or wall as follows:
1. Remove the bottom cover.
2. Remove the four rubber pads to reveal holes for screws.
3. Use the bottom cover as a template to mark the places for holes.
4. Drill four holes to your desk / wall.
5. With flat head screws, secure the bottom cover to the wall.
6. Last, just snap the bttn body back on the bottom cover.
Please note that to remove the body again, you need to use a small screwdriver or a credit card to push the clip holding the body locked to the bottom cover.