| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the number of components by a new switch serving both as an output sound volume adjustment function and a game mode setting function.SOLUTION: In a setting area of an operation part, a plurality of output sound volume setting areas are provided, and the respective output sound volume setting areas are correlated with different game modes (normal modes and power-saving modes), thus allowing one switch to serve both as an output sound volume adjustment function and a game mode setting function.</p> |
