Electrical apparatus and a control method

An acceleration sensor (3) detects the acceleration. Timer (6) for timing. Jerk calculation unit (12) according to (3) detected acceleration by the acceleration sensor, the remote control is calculated (1) (J). The main reason determining means (13) based on changes in the state according to the index value calculated by the calculation unit (12), and the jerk by the timer (6) to give the counted time (J), and determines whether the user handset (1) . The sleep control unit (14) mainly in the case of the determination unit (13) determines that the user handset (1) causes the display portion (5) of the display becomes ON.