wipe down with a piece of soft cloth
Do not expose to direct sun light or to environments of extreme heat
Limit voltage to 5V or less
Avoid dropping the speaker as this may cause internal and external damage
Do not dismantle the speaker without authorization
VII. Troubleshooting
Faults
Solutions
No power supply and dead LCD
screen
(1) Check whether the battery is installed properly;
(2) Check whether the power cable is connected
well; (3) Check whether the Power Button or the
backlight is on
SD card/flash memory stick failure (1) Check whether the music playback mode is
initiated; (2) Check whether the SD card or flash
memory stick is inserted properly; (3) Check whether
the tracks stored on the SD card or flash memory
stick are in the format of MP3.
Unable to receive FM signal or
not all stations are functioning
(1) Check whether the FM mode is initiated; (2)
Check whether the surroundings are too enclosed or
remote; (3) Check to ensure the FM operation
procedures are followed strictly.
AUX mode failure
Check whether the supplied 3.5mm audio cable is
connected well to the speaker.
Bluetooth connection failed
several times
1. Check whether the speaker is still in pairing mode or switch
QBT-450 off and then on. Device will enter paring mode
automatically; scan again
2. There are too many Bluetooth devices in proximity that cause
difficulty in connection. Please turn them off.
Low or distorted sound in
the Bluetooth mode
1.
Check the Bluetooth device’s volume and then adjust it to a proper
level.
2. Recharge the battery
The music stops from time
to time in the Bluetooth
mode
Check whether the speaker’s effective transmission range is
exceeded or there is an obstacle standing between the speaker and
other Bluetooth devices.
VIII. Compatibility
Wireless
：
Devices configured with Bluetooth 2.1 or higher version such as iPad, iPhone (second
generation or at least software v3.1), iPod Touch and MAC as well as a majority of Smart
phones or computers that support Bluetooth.
BLUETOOTH V2.1 consists of protocols like: A2DP, AVRCP.
