| 摘要 |
PROBLEM TO BE SOLVED: To extend a speech time or a waiting time by reducing power consumption by stopping the operation of an additional function, when a remaining amount of a battery is small. SOLUTION: Remaining amount of a battery is detected by a remaining amount of battery detecting part 13, and the detected residual amount is compared with a threshold value by a control part 5, and when it is judged that the residual amount is small, power consumption is reduced by stopping the function of an incoming call LED 7, an incoming sound control part 8, and a display part 10 which is an additional function. Thus, speech time or waiting time can be extended. |
