Toshiba 1805 - Manual (Page 33)

33 Finding Your Way Around
Left side
The Wi-Fi TM switch (available only on Wi-Fi systems) turns the
optional 802.11b Wi-Fi wireless communication system on or off.
NOTE: The Wi-Fi TM option must be factory-installed at the
time of order. You cannot install it later.
The Wi-Fi TM LED (available only on Wi-Fi systems) glows
orange when the wireless LAN functions are on.
The volume control dial allows you to adjust the volume of the
computer’s speakers.
The battery lock releases the battery. For more information, see
“Charging the main battery” on page 102 .