Samsung AA-SM7PWB Owner's Manual page 7

A. Mouse does not work upon installation or is not detected
Try one or more of the following:
Make sure the batteries are installed correctly and turn the switch on.
Replace a fresh set of batteries if it still does not work.
Verify that the computer is Bluetooth enabled.
Press the connection button to reset the Bluetooth connection between your
mouse and your computer. Make sure it has been detected by the Operating
Systems properly.
B. The screen cursor does not move properly
If your screen cursor lags behind the movement, then your Bluetooth
connection may not be able to transmit all of the data from the mouse
with the necessary speed. This may be caused by interference from
other radio sources, obstructions in the radio wave path, excessive
distance from the computer, or a combination of the above.
※
Try the following actions to improve your Bluetooth
connection and optimize your mouse performance:
Remove any metallic objects from the line of sight between your computer
and the Bluetooth mouse.
If you are using a computer with a built-in Bluetooth antenna, try
reorienting the computer until you get a better data rate.
If you are using a Bluetooth dongle, use a USB extension cable and place
the Bluetooth dongle onto your desktop or somewhere in sight of your
Bluetooth mouse.
Move the mouse closer to your Bluetooth dongle.
Turn off the mouse and turn it on again for better connection.
Disconnect any Bluetooth audio devices, such as headsets, that may be
connected to your computer.
Switch off any other devices operating in the 2.4 GHz radio spectrum,
such as Wi-Fi network, mobile telephones, etc., or move their antennas
further away from your computer.
6