Lenovo A7-40 Tablet - Manual (Page 18)

When WLAN is enabled, your tablet will automatically scan for available
wireless networks, displaying them in the WLAN network list.
The network status icon, indicates that the network requires no
password, and can be connected to directly. However, indicates that the
network has been encrypted, and can be connected to only after the required
password is entered.
You can select any network you want from the list. After selecting the
network, enter the password and tap Connect to connect directly.
Alternatively, select the check box in front of Show advanced options to
adjust the proxy and IP settings in the pop-up text box, and then tap Connect
to connect to a network. You can also select Add network to manually
add a network. Tap > Advanced for advanced WLAN settings.
Network notification: When activated, the system will notify you if
there are any open net works available.
Keep WLAN on during sleep: You can set WLAN connection policy
during sleep mode to Always, Only when plugged in or Never.
WLAN optimization: When activated, the system will minimize battery
usage when WLAN is on.
Bluetooth
You can establish a wireless connection with any other Bluetooth compatible
device using Bluetooth technology. Examples of Bluetooth compatible devices
can include stereo earphones, keyboard, etc.
Since a Bluetooth-enabled device communicates with other devices by radio
waves, you do not have to position your tablet directly towards the other
device. However, please note that the Bluetooth connection can sometimes be
interrupted by obstacles, such as walls, or other electronic devices.
Your tablet supports V4.0 Bluetooth. To ensure effective operation of your
tablet and another Bluetooth-enabled device, please use only Lenovo-
approved accessories compatible with your tablet. Also, check with the
manufacturer of the other device to determine whether the device is
compatible with your tablet.
In some cases, the use of Bluetooth may be restricted. Please consult with
local authorities or your service provider.
Using applications that require Bluetooth technology or running such
applications in the background will consume the battery power of your tablet
at a faster rate, and reduce the service life of your battery. You can perform
the following in Bluetooth settings: