Elecom M-XGS30BBSK Series User Manual page 31

3) Press the button to switch between the connected devices.
Please refer to
The selected connected Bluetooth device will be registered under your connected
devices.
4) During the device search, hold down the pairing button on the underside for 3
seconds and then release.
Pairing mode will be activated and the LED will blink.
The LED will blink white when the connected device is "PC1" and green when it is "PC2".
5) Tap on "ELECOM OpticalMouse" when it is detected under "DEVICES".
Pairing begins.
"Switch connected device" to switch between connected devices.