[. . . ] When the battery becomes weak, "E" indicator appears in the display. In the event of a power interruption when the battery is weak, current time and alarm functions will be initialized. Note for customers in Canada and Europe (except East Europe) The clock is preset at the factory, and its memory is powered by the preinstalled Sony CR2032 battery. [. . . ] Insert the battery compartment back into the unit and secure it with the screw. To change the setting for other models, follow the procedure from step 2. Model for other countries/ regions: Modèle pour les autres pays et régions : Note If you replace the battery, do not disconnect AC plug from AC outlet. Be sure to observe the correct polarity when installing the battery. Do not hold the battery with metallic tweezers, otherwise a short-circuit may occur. Do not expose the battery to excessive heat such as direct sunlight, fire or the like. Battery Warning When the unit will be left unplugged for a long time, remove the battery to avoid undue battery discharge and damage to the unit from battery leakage. After setting the time, two short beeps sound and the clock starts from 0 seconds. The sound turns off but will automatically come on again after about 10 minutes. Each time you press SNOOZE/DATE/SLEEP OFF, the snooze time changes as follows: Model for other countries/ regions Band FM AM Frequency 87. The display shows the snooze time for about 4 seconds and returns to show the current time. When you press SNOOZE/DATE/SLEEP OFF after the current time appears, the snooze time starts from 10 minutes again. Power output 150 mW (at 10% harmonic distortion) Power requirements Model for Canada: 120 V AC, 60 Hz Model for other countries/ regions: 230 V AC, 50 Hz For power backup: 3 V DC, one CR2032 battery Dimensions Approx. CR2032 battery: model for other countries/ regions Design and specifications are subject to change without notice. Pressing and holding + or ­ changes the year, month or day rapidly. When setting the current time, time changes rapidly by 1 minute-increments up to 10 minutes, and then by 10 minute-increments. While setting the clock, you must perform each step within 65 seconds, or the clock setting mode will be cancelled. If RADIO OFF/ALARM RESET is not pressed, the alarm sounds continuously for about 60 minutes, and then it will be stop automatically. [. . . ] To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. Do not install the appliance in a confined space, such as a bookcase or built-in cabinet. To reduce the risk of fire or electric shock, do not place objects filled with liquids, such as vases, on the apparatus. [. . . ]