Elecom SHELLPHA M-SH20BBS User Manual page 30

7) You can use the mouse when the status shows "Connected"
You can now use the mouse.
Register custom actions to the buttons.
Only the 2 buttons and the wheel can be used under the initial settings.
Button 1: Single-Tap
Button 2: Secondary Click
Follow the steps below to assign all other button functions.
1.
Turn ON AssistiveTouch.