Instructions
Press the "HOME" button on the Wii remote.
Highlight "Wii Remote Settings" from the "HOME" menu and press the "A" button on the Wii remote.
Highlight the "plus" and "minus" buttons on the "Wii Remote Settings" screen and press the "A" button to increase and decrease the remote volume. Each time you press the "A" button, a sound will emanate from the internal speaker to preview the volume setting.
Highlight "Close Wii Remote Settings" to exit the menu and confirm your settings.