裏うらボタン

noun

button back; hidden button

Refers to a button located on the back or underside of a device, often used for reset, pairing, or other secondary functions. Common in electronics and game controllers.

• このリモコンの裏うらボタンを押おすと、設せっ定てい画が面めんが開ひらきます。

  Pressing the button on the back of this remote opens the settings screen.

• ゲームコントローラーの裏うらボタンに機き能のうを割わり当あてられる。

  You can assign functions to the back buttons on the game controller.