User's Manual

Wireless audio adapter
Bluetooth Transmitter
1. Introduction
2. Spec:
Thanks for choosing our wireless audio adapter. This
device is a Bluetooth transmitter.
5. Functional operation
6. Tips
A. It has built-in rechargeable battery for long standby. We
highly recommend to fully charge the device before its usage.
B. Powering ON/OFF
Press and hold the multi-function button for 3 seconds to
power on and then the blue indicator light will blink ; Long
press the multi-function button for 3 seconds to power off, and
then the blue indicator light will be off.
D. Connecting to Audio output
The airline adapter jack is foldable , Insert the unit audio jack
to either dual or single aux output jack
E. Use Your Bluetooth Headphones in the Air
1. Power on your own Bluetooth headphones .
2. Power on the airline adapter,enter paring mode ,Blue and
red light will flash
3. The airline adapter will automatically paired with your
Bluetooth headphones (Two item distance is do not exceed
10-15meters ),Then you can your flight travel .
F. Dual pairing
The airplane adapter can connect two device at the same time .
After connect the first device successfully , power on another
bluetooth headphone , double press Multi-functional button
enter paring mode, red light will flash while blue led is solid .
then it can connect automatically , red and blue led will blink
in unison to indicate successful connection.
G. Enhanced Audio with AptX Low Latency
Without irritating plane noises ,sink into the music that you love
or the films available on the flight. With AptX Low Latency
technology built-in, the enhanced audio ensures there’s no
delay or lag between the source and your headphones.
1. Different Bluetooth devices (such as Bluetooth headsets)
will have different searching connection times due to different
protocols and protocols used.
2. If the pairing connection fails or cannot connect
successfully for a long time, please power off and turn on this
device and connect again.
7. Fault diagnosis
When facing the following problems, users can try the
following methods, if there is still a problem after processing,
please contact us for solutions. Please do not disassemble
the device or not to repair by yourself.
Bluetooth audio adapter cannot work normally?
A. To check if the device is powered on or turned on.
B. To check if the working mode is correct and process proper
mode operation
C. If cannot connect Bluetooth devices(such as Bluetooth
headset), please make the device closer and restart to
connect the device.
D. Due to the different Bluetooth chip solutions and transmission
protocols, there will be something wrong with connection, and
we will continue to optimize the device, thanks for support.
• Bluetooth version: V4.1+EDR
• Bluetooth Frequency:2402MHz-2480MHz
• Support Protocol:APTX, A2DP,AVRCP
• Bluetooth Distance:10m(free space)
• Power Supply:DC 5V
• Built-in Battery: 200mah
3. Packing Content:
4. Appearance:
• Merlin airline adapter *1pc
• User manual*1pc
• USB charging cable*1pc
Micro USB charging port
3.5mm Audio plug
On/Off button
飞机发射器说明书
尺寸：60*80mm 对折,正面朝上
材质：128g铜板纸 黑白双面印刷