Clarion AUTOPC 310C Owner's Manual page 23

Volume level is
remembered
Adjusting the
volume
Push-To-Talk (PTT)
Charging Backup
Battery
NOTE: Be sure to reduce the volume level before shutting off the ignition
key or turning the unit's power off. The unit remembers the last volume
setting before power was turned off, and it will start with that same setting
when power is turned back on.
The volume controls are located on the -selector. Press the plus (+) key
to increase volume press the minus (-) key to reduce volume. Also, voice
commands are available to adjust volume (see the Using Speech
Commands chapter).
When you press the Push-To-Talk button (PTT), Auto PC will "listen" for
voice commands. This is the same as saying the words, "Auto PC" to
"wakeup" Auto PC.
Backup Battery is not charged in shipment condition, and it will start
charging as soon as the Auto PC is connected to your car's power source
(Main Battery). When the Backup Battery is charged, the "charging"
indicator disappears from the display.
NOTE: Backup Battery cannot be charged in temperature of less than
18 degrees Fahrenheit.
Clarion AutoPC Owner's Manual
11