User's Manual

2 - 12 ES400 User Guide
2. Tap and move the slide bar to adjust the volume.
3. Select the On or Off radio button to turn the volume on or off.
You can also adjust the system volume using the Sounds & Notifications window, or use the Up/Down button on
the side of the ES400.
Battery and Charging
Charging the ES400
Before using the ES400 for the first time, charge the battery using either the USB Charging Cable or the cradle. For
cable and cradle setup and charging procedures see Accessories in Chapter XX.
Place the ES400 into the cradle or connect the cable. The battery automatically begins charging. See Table 2-3 for
charging indications. The 1050 mAh battery fully charges in less than six hours.
Figure 2-9 Charing ES400 with Power Supply
CAUTION Ensure that you follow the guidelines for battery safety described in Battery Safety Guidelines on page
12-2.