■Accessories
Thanks for purchasing JUST COMBO. Please
read this user manual before using the product
for perfect performance and correct use of
JUST COMBO.
■Specifications
1.Connect headphone/speaker and audio input.
2. Connect USB power supply.
3. Turn on power switch.
4. Adjust volume of each track/master volume.
■Features
USB power cable x 1
Power transformer x 1
User manual x 1
48V、1.5Vpower supply mode
it can be connected to 1 set of 3.5mm condenser
microphone, dynamic microphone, or electret
condenser microphone.
USB power supply mode
Power supply via 5V /1A USB.
Stereo 2 inputs/2 outputs/MIC input
it can be connected to 3 audio inputs simultane-
ously. There is independent volume adjustment
knob for each track to be output via headphone
and speaker.
Bluetooth mode
it can be connected to mobile device/Bluetooth
headphone or speaker
Ultra-compact mixer
Easy to operate and carry.
Amplification gain 25dBm
Current consumption
70mA (Maximum)
Power supply
USB 5V/1A
Exterior dimension
100 x 55 x 15 mm/
3.9" x 3.1" x 0.6"
Weight
70 g / 2.5oz (main body)
■Operation
JUST COMBO
■Panel Functions
Master volume
adjustment knob
Power indicator
Volume adjustment knobs
For adjusting the
volume of each track
Audio output
Stereo output
Headphone
output jack
LINE audio input
Which can be
connected to
3.5mm external
audio input
48V一1.5V switch
For MIC power supply switching
48V: condenser microphone
一 : dynamic microphone
1.5V: electret condenser microphone
Bluetooth indicator
(mobile device)
AUX audio input
Which can be
connected to 3.5mm
external audio input
MIC input
Which can be
connected to
3.5mm microphone
Bluetooth
headphone/speak-
er volume
adjustment knob
USB power
USB 5V/1A transformer
Power switch
USB/ OFF
1.5V
MIC
LINE
AUX
Bluetooth indicator (Bluetooth
headphone/speaker)
1
2
Mobile device connection
Bluetooth headphone/speaker connection
1. Turn on the Bluetooth of mobile device
2.Connect the USB power of the
equipment and turn on the power
3.Press the Bluetooth indicator (mobile
device)
4.The blue indicator will be lit when the
matching is successful
1. Turn on the power of headset/speaker
2.Connect the USB power of the equipment and
turn on the power
3.Press the Bluetooth indicator (Bluetooth
headphone/speaker)
4.The blue indicator will be lit when the matching
is successful
When an audio cable is inserted into Line in, it will forcibly cut off the
Bluetooth music input and have it switched to external audio input.
1
2
■Bluetooth Setting
Extra Precautions
Turn off the power and disconnect the USB 5V/1A Adaptor adapter from the electrical
outlet immediately if:
Do not leave this device in an environment subject to extreme temperatures,
such as a closed vehicle under direct sunlight.
Avoid using the product in dusty, humid or high-vibration environments.
Using this device near a loudspeaker or other device connected to a large power
source will easily cause noise.
Storage
The USB power adapter or power cord is damaged;Smoke or smell is detected.
If any external object is inserted into the device, or if the device comes into contact with
liquid.
The device is not functioning properly or the performance has changed signifi-
cantly.
We recommend that the power source not be used together with other devices in
order to prevent noise.
Before connecting other devices, please disconnect the power of all other devices in
order to avoid causing damage to the product or its functions.
Do not use a shared circuit power supply with a device that generates line noise, such
as electric motors or lighting systems with dimmer functions.
Do not step on or place heavy objects on the power cord to avoid damaging it.
When unplugging the power supply, hold the head of the plug and do not pull the cord
itself.
If the device is not going to be used for a period of time, please disconnect the power.
About Power Sources
Unlicensed frequency band: this equipment is in compliance with Part 15 of the FCC
Rules. The operation must meet the following two conditions:
(1) This equipment will not cause harmful interference.
(2) Any interference which is received by this equipment, including the resulting unwanted
interference to users.
(15.21) Warning: Changes or modifications not expressly approved by the compliant party
may invalidate your rights to operate the equipment.
1. The antenna of this equipment must be kept at least 20 cm away from any person to be
in compliance with the FCC RF exposure compliance requirements.
2. This emitter must not be located at the same place as any other antenna or emitter, nor
can it be used together with any other antenna or emitter.
It applies to the restriction of B-type digital equipment.
This equipment has been tested and proved to be in compliance with the restrictions of
B-type digital equipment in Part 15 of FCC Rules. The purpose of these restrictions is to
provide reasonable protection against harmful interference from residential installation.
This equipment will generate, use, and radiate RF energy, which could cause harmful
interference to radio communication if it is not installed and used according to the instruc-
tions. However, it cannot be guaranteed that there will not be any interference during
specific installation. If this equipment actually causes harmful interference to radio or TV
reception (which can be confirmed by turning on and off the equipment), users are
recommended to correct such interference using any one or more measures below:
- Readjust reception direction or antenna position.
- Increase the distance between the equipment and the receiver.
- Connect the equipment to the socket with the circuit difference from the receiver.
- Seek assistance from distributor or an experienced radio/TV technician.
Maintenance
To clean, wipe with a soft dry cloth or a damp cloth. To remove stubborn stains,
use a mild, non-corrosive cleaning agent. Be sure to use a soft dry cloth to wipe
the device dry.
Do not use benzene, thinner, alcohol or any type of solvent to prevent the
possibility of discoloration or deformation.
Owner’s Manual
English
3.5 to 3.5
Stereo audio cable
USB 5V/1A power
supply
■
Important Notes
