LEXIN LX-FT4 User manual

Table of Contents
1. Introduction..................................................................................1
2. Package Contents......................................................................2-3
3. Installation Instructions...........................................................3-6
4. General Operation Instructions..............................................6-7
-Powering On/Off and Charging
-Pairing LX-FT4 with a Bluetooth Device
5. Controls and Functions..........................................................7-18
6. Maintenance and Care.........................................................18-19
7. Certification and Safety Approvals..........................................19
8. Warranty.....................................................................................20
9. Waiver and General Release...............................................20-21

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1. Introduction
Thank you for choosing the LX-FT4 Motorcycle 4-Way Bluetooth Conference
Intercom. This product has a 2,000 meters (1.2 miles) bike-to-bike full-duplex
intercom maximum range, includes Bluetooth stereo wireless helmet headset(s), and
is designed for installation into most open face, modular, and full-face style helmets.
With the LX-FT4 you can call hands-free on your Bluetooth mobile phone, listen to
music or voice instructions of GPS navigation, and activate wireless Intercom for
rider-to-rider or rider-to-passenger intercom talk within a range of 2,000 meters (1.2
miles) (if four units are connected).
The LX-FT4 is compliant with Bluetooth Specification V4.0 supporting the following
profiles: Headset Profile (HSP), Hands-Free Profile (HFP), and Advanced Audio
Distribution Profile (A2DP). It supports universal pairing with most Bluetooth
headsets on the market. The user can activate Siri or S-Voice from the main unit for
voice dialing and other voice commands. The FM radio tuner is built into the main
unit and allows for station scanning.
Superior audio fidelity has been achieved with our high fidelity, non-ported, and
ultra-slim helmet HD speakers. This headset also provides the industry's best
combination of wind and ambient noise reduction with the miniature boom
microphone.
The main unit is powered by a rechargeable lithium ion/polymer power cell that
provides 10-15 hours of active use from a full charge. standby time is over a week.
Please read this User Manual carefully before using this product.

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How It Works
2. Package Contents

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• LX-FT4 Main unit
• Stereo HD Speaker with Interchangeable Microphone for Open Face Helmet or Full
Face Helmet
• USB Charging Cable
• Mounting Bracket & 3M Double Side Tape
• Boom microphone Holder
• Speaker Pad
• Allen Wrench
• User Manual
3. Installation Instructions
3.1.1 Mount the bracket between the internal padding and external shell of the helmet,
and tighten the two screws between the bracket and clamp plate by using the allen
wrench.
Note: Depending on the size and shape of your helmet, you may need to change the
thickness of the rubber pad between the clamp plates. You can find two extra rubber
pads in the box. To increase the overall thickness, attach the thinner one to the
original rubber pad or replace the original rubber pad with the thicker one.

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3.1.2 If have any problems with mounting the bracket, you may use the 3M tape to
adhere it onto the helmet. Just take off the rubber pad from the bracket, peel off the
protective backing sheet of the double 3M tape. Remember that the white side adheres
onto the bracket and the red side adheres onto the helmet.Press for 15 seconds and
allow the glue dry for 24 hours.
Note: Even though the 3M Tape mounting is provided for convenience, LEXIN
recommends using the bracket mounting. The 3M Tape mounting is offered as an
option that you may use at your own risk and responsibility, LEXIN does not
assume any responsibility for use of it.
3.2 Locate an area in the nose section just to the left of center to mount the button
microphone for full helmets . Place the button microphone to the velcro pad and
connect it to the connector of the headset.

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If you are installing into an open face helmet, attach the microphone to the velcro pad,
and adjust the direction of the microphone so that the triangular mark on the
microphone is pointing towards your mouth. Use the boom microphone holder to fix
the microphone if necessary.
3.3 Place the speakers into the helmet’s inner padding. Push the speakers and
microphone firmly against the Velcro pads. If the helmet has deep ear pockets, you
can use the speaker pads to place the speakers closer to your ears.
3.4 Press the wires into the gap between the helmet liner and shell.
Note: The speaker with shorter wire is for the left ear and the speaker with the
longer one is for the right ear, to enhance the FM radio reception as well.
3.5 Mount the LX-FT4 main unit on the bracket. Attach the top first, then slide the
main unit down onto the bracket until it clicks firmly into the bottom portion of the
bracket.

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3.6 To remove the main unit from the bracket, press the top part of the bracket and
take it out.
4. General Operation Instructions
4.1 Powering On/Off and Charging
• Power On
Press and hold both the A button and Jog Dial simultaneously for about 2 seconds.
The LED will blink blue. You will hear the voice announcement about the current
battery life.
• Power Off
Press and hold both the A button and Jog Dial simultaneously for about 2 seconds.
The blue LED will turn red, then off.
• Charging
Plug the USB cable into the USB port. The LED turns red while charging, and will
turn solid blue when fully charged. It takes about 2.5 hours to be completely charged.
• Low Battery Alert
When the battery power drops below 20%, about 1-1.5 hours of use remains, and a
beep tone will sound every 5 minutes.
4.2 Pairing the LX-FT4 with a Bluetooth Device
Start with the unit powered off, press and hold the A button for about 3 seconds until
the LED begin flashing blue and red. Follow the source devices instructions to
connect. After the source device has been paired, the LX-FT4 will automatically
connect when it is turned on and the Bluetooth is enabled on the source. To manually
connect, simply click the Jog Dial to connect with the audio source.
• Pairing a Mobile Phone
Step 1. Start with the unit powered off, press and hold the A button for about 3
seconds until the LED begin flashing blue and red.
Step 2. Search for Bluetooth devices on your mobile phone. The headset will be listed
on your mobile phone as “LX-FT4”.
Step 3. Enter 0000 for the PIN if needed.
Step 4. Your mobile phone will confirm that pairing is complete. The blue LED blinks
after they are connected.

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• Pairing a Stereo Bluetooth Adaptor
Step 1. Turn on the audio source and prepare Stereo Bluetooth Adaptor for pairing
Step 2. Put LX-FT4 main unit in Bluetooth pairing mode (see above)
Step 3. Turn on or plug in the Stereo Bluetooth Adaptor
Step 4. The audio source will automatically start playing through the LX-FT4 main
unit when pairing is complete.
• Pairing Bluetooth GPS Navigation
Step 1. The pairing procedure is the same with “Pairing Mobile Phone”
Step 2. Please refer to the manual of the Bluetooth GPS navigation for details.
Step 3. You can listen to Bluetooth voice instructions from Bluetooth GPS navigation.
5. Controls and Functions
5.1 Volume and Music Control
When playing music, press and hold the Jog Dial for one second to enter track control
mode, a beep tone will sound, then within 5 seconds rotate the Jog Dial counter
clockwise for previous track, clockwise for next track. After 5 seconds, the Jog Dial
reverts back to volume control mode automatically and a beep tone will sound.
Rotate the Jog Dial clockwise for volume up and counter clockwise for volume down.
Click the Jog Dial button to play or pause music.
5.2 Safe Mobile Phone Calls - Incoming and Outgoing
5.2.1 Answer incoming call:
Click the Jog Dial button to answer the phone call.
Note: The LX-FT4 will NOT automatically answer the incoming phone. You can
enable or disable the automatic incoming phone call answer feature by pressing
and holding both the Jog Dial button and B button for 2 seconds, when you see the
red light flash 3 times, it is disabled, when you see the blue light flash 3 times, it is
enabled.
5.2.2 Reject incoming call：
Double click the Jog Dial button.
5.2.3 End active phone call：
Click the Jog Dial button.
5.2.4 Voice Dial：
When in standby mode, press and hold the Jog Dial button for one second to activate
Siri or S-Voice. You will hear a beep sound, and then there will be a voice prompt
from the mobile phone. Simply speak the name from your phone list to dial.
5.2.5 Last phone call number redial：
When in standby mode, double-click the Jog Dial button.

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5.3 Bluetooth Intercom Talk
5.3.1 Pairing with other LX-FT4 headsets for intercom talk
Prior to pairing units for communications before riding, we strongly suggest that all
existing connections be cleared from each unit. To clear existing connections, simply
press and hold A button and B button together until the red LED flashes. All previous
connections will be cleared from the unit.
1) Pairing two LX-FT4 headsets to talk
Tips: To start an intercom talk, you should pair the two units first.
Step 1. Pairing two LX-B4FM units first
Start with both units powered off, press and hold the A button on both units for 3
seconds until the LED is flashing blue and red to enter pairing mode.
unit one unit two
Click the A button on either unit to pair. Once pairing starts, the LED on the unit
clicked will flash only blue. When the LED is blinking blue on both units, then
pairing is complete and successful.
unit one or unit two unit one and unit two