User's Manual

Safety Guidelines
Button Function
Power On:
a. When pressing power on button, Dazzle colour lamp on
backpack will light gradually.
b. When Backpack turns on, default mode is TF card mode, if
has no TF card it will switch to Bluetooth mode automatically.
When Backpack reminds “card mode”, it state it’s in TF card
mode. “Waiting for the connection” is waiting for Bluetooth
pairing. “Connected” is for complete pairing.
Button Functions:
a. Play/Pause button: Short press for play/pause. Long press to
switch between TF card and Bluetooth mode. Under Bluetooth
mode, this button can answer calls (Short press for answer,
long press for hang up).
b. Next/ Increase Volume Button: Short press for next song,
long press for increase volume. When increase to Max,
Bluetooth will beeps.
c. Previous/Decrease Volume Button: Short press for previous
song, long press for decrease volume.
AUX Function: When insert 3.5mm stereo audio cable into
AUX hole, it will change to AUX source input. This is suitable for
IPHONE/IPAD smart phones.
Earphone Function: Insert 3.5mm earphone, amplifier
change to earphone.
Amplifier Function: Turn on switch on controller,
Microphone Hole location can use as a amplifier.
Dazzle colour lamp: When turns on, Backpack Red, Green,
Blue light gradually. It can control by Dazzle colour lamp Turn
On/Off.
Charging Function: Should use 5V 500mA or above 500mA
charger for charging. When charging, Red LED flash, it will
always light when charged.
Power Bank: Charge to all smart phones via USB output
5V/1A current.
Power Bank Output:: USB2.0 DC5V 1A
Product specification
Support AUX stereo input function.
Support earphones.
Support public address function.
Dazzle colour lamp
12
13
14
Dual track Stereo: 5W*2
Polymer lithium-ion battery 5200mAh, playing 8-12 hours
Input Sensitivity: AUX450 mV
SNR: >80dB
Distortion <0.05%
Frequency response: 120Hz-20KHz
Support playing songs in TF card (mp3/wma/wav files),
maximum 32GB.
Bluetooth version: 2.1+EDR, Stereo output, Bluetooth
distance: Normal 10m, maximum 20m.
Charging via Micro USB DC5V 500mA, charging time: 8-10
Hours
Product Structure
TF Card Slot
controller Port
Power
Charge PortPower Bank Port
Indicator Light
Line-in Hole
Line-out Hole
Speakers
Dazzle
colour lamp
BASS Diaphragm
Host Schematic Diagrams
Product Structure
Microphone Hole
Dazzle colour lamp Turn On/Off
Dazzle colour lamp Turn
Off/ Indicator Turn On
Amplifier On/Off
Next/ Increase Volume
Play/Pause/Answer/Hang up
Previous/Decrease Volume
Play/Pause/Answer/Hang up Button: Shot press for Play/Pause;
Long press 3S switch to TF card/ Bluetooth mode；When calls
coming, short press for answer, press again for hang up; Long press
for hang up directly.
Next/ Increase Volume: Short press for next song, long press for
increase volume.
Previous/Decrease Volume: Short press for previous song, long
press for decrease volume.
Notes:
1.We should use 5V 500mA charger to charge Backpack speaker.
When charging, Red LED flashing; when charged, Red LED light.
Charging about 8 hours every time, it may need 8-12 hours to
charged.
2.Open Backpack to check if the controller is connected ok.
3.Open Backpack to press Power button to turn on, you can operate
according to user manual.
Controller Schematic Diagrams
Simple Troubleshooting
Cannot turn on:
Please check if press the power button in right place. Try again
after charging 3-4 hours.
LED cannot light after turn on:
Check if the speaker battery is still have power, try again after
charging 3-4 hours.
Cannot play music in TF card:
Check if the files are supported files or if the TF card is out of
memory. Insure the speaker is in TF card mode.
Cell phone cannot connect to Bluetooth:
Check if the speaker is in Bluetooth mode or connected to
other cell phone. Use other phones to have a try. Or you can
restart the speaker and try again.
Amplifier function not working:
Please check if put the button into right place. Keep plug well
connected. Keep closer to the MIC and check if there any
foreign matter in MIC hole.
Cannot charge to the speaker:
Check the charger is in good condition. Should use 5V 500mA
or above 500mA charger. If the RED LED stops flashing, it
states the speaker is fully charged.
Power bank cannot working:
It cannot working when the power bank is in charging
condition. If the power bank is out of power, try again after
it’s fully charged.
Small or no voice with AUX function:
Check if the cable is ok or the terminal is connected well.
Small or no voice when calling with Bluetooth:
Check if the cable is ok or the terminal is connected well.
User Manual
Multifunction Bluetooth Backpack Speaker
TF