| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic instrument permitting a power-saving effect. SOLUTION: Based on an operation state (total volume) of an operation means 109a, a changeover means 230 switches between a 1st power supply means 210 and a 2nd power supply means 220 as a power supply means for supplying electric power to a sound generation means 112. Thus, the power source is switched to a low voltage power source at the time of performing nothing or performing in a small sound volume, and to a high voltage power source at the time of performing in a large sound volume. |
