| 摘要 |
PURPOSE:To provide a selective calling receiver which can utilize batteries as efficiently as possible and also prevent missing important calls as much as possible. CONSTITUTION:When it is detected that a voltage V of a battery 7 lowered to a reference voltage VSH by a battery voltage detecting circuit 8, a control circuit 5 of a control part 100 controls a driving circuit 10 and generates a first alarm sound from a speaker 11. Subsequently, when it is detected that synchronization with a base station can not be performed by the control circuit 5 of the control part 100, the control circuit 5 of the control part 100 controls the driving circuit 10 to generate a second alarm sound from the speaker 11. |
