COMSOL UBT-120 - Manual (Page 11)

USB Bluetooth Adapter User Manual Page 10
6.
Bluetooth Logo Conditions
6.1 Condition 1: Disconnection of the Bluetooth Network
(The Bluetooth Network is disconnected while the Bluetooth dongle is still
plugged in and the software is under operation.)
6.2 Condition 2: Failure to detect the Bluetooth dongle
(The Bluetooth icon turns red, indicating the failure to detect the Bluetooth
dongle.)
6.3 Condition 3: Availability of the Bluetooth dongle
(The Bluetooth icon turns white, indicating the availability of the Bluetooth
dongle.)