- 08 - - 09 -
7. How to ensure high-quality calls when driving on the highway
7.1 Adjust the direction of the KM21 until he is directly facing the driver.
7.2 Press the button during the call, (when you hear the Dingdong tone, turn on the road
noise reduction mode).
8. Schematic diagram of fuse replacement
* Highly developed security.
* Innovative fuse tube design and replaceable.
* It can protect your car and car charger in case of overcurrent.
* Comes with a spare fuse
.
9. Detailed accessories
• Metal washers
• Fuse
• Rubber gasket
• Metal tip screws
How to install the fuse?
1. Rotate the screw on the bottom of the Bluetooth FM transmitter counterclockwise.
2. Insert the fuse into the screw hole with the metal tip, the metal on the edge of the fuse
will be attached to the metal tip.
3. Assemble the rubber gasket.
4. Assemble the metal gasket.
5. Turn the screw clockwise to the bottom of the Bluetooth FM transmitter.
10. Frequently Asked Questions (Block Diagram)
10.1. Noise issues.
Solution:
A. Reduce the volume of the speaker by one third and increase the volume of the smart
device.
B. Signal interference. Please switch to another empty white frequency point.
C. Plug and unplug the machine again to restore the initial state and work again.
10.2. The other party cannot hear you during a call.
Reason 1: The dialing method is wrong.
solve:
A. When a call comes in, click the phone button "
" to answer the call through the speaker
in the car.
B. Activate the phone speaker to answer the call
.
Reason 2: The call volume is low.
solve:
A. Increase the volume of the phone.
B. The volume of the other party is too low during the call, just ask the other party to
increase the volume.
Reason 3: The microphone is broken.
Suggestion: Contact customer service for help.
Friendly reminder:
After receiving the product, do not rush to insert the product into the cigarette lighter
jack of the car. After starting the car, rst turn on the idle FM radio, and patiently select
a blank channel with no local programs on the car radio. The standard is a slight rustle.
Then insert the product into the cigarette lighter jack and adjust the FM frequency of
the product to be the same as the FM frequency of the car. At this time, the car radio
will be very quiet and there will be no static electricity interference. (If it is still not quiet,
please try to nd a new blank channel again), and nally connect to your phone via
wireless. When they are successfully paired, you can listen to songs on your phone and
make hands-free calls on your phone.
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