Manuals+

LEXIN LX-FT4 Motorcycle 4-Way Conference Intercom

User Guide

1. Introduction

Thank you for choosing the LX-FT4 Motorcycle 4-Way Bluetooth Conference Intercom. This product offers a 2,000-meter (1.2 miles) bike-to-bike full-duplex intercom range and includes Bluetooth stereo wireless helmet headset(s). It is designed for installation in most open face, modular, and full-face helmets.

With the LX-FT4, you can make hands-free calls on your Bluetooth mobile phone, listen to music or GPS navigation voice instructions, and activate wireless intercom for rider-to-rider or rider-to-passenger communication within a 2,000-meter range (for up to four connected units).

The LX-FT4 complies with Bluetooth Specification V4.0, supporting Headset Profile (HSP), Hands-Free Profile (HFP), and Advanced Audio Distribution Profile (A2DP). It supports universal pairing with most Bluetooth headsets. The unit allows activation of Siri or S-Voice for voice dialing and commands. An integrated FM radio tuner with station scanning is also included.

Superior audio fidelity is provided by high-fidelity, non-ported, ultra-slim helmet HD speakers and a miniature boom microphone offering excellent wind and ambient noise reduction.

The main unit is powered by a rechargeable lithium ion/polymer battery, providing 10-15 hours of active use on a full charge, with over a week of standby time. Please read this User Manual carefully before using the product.

2. Package Contents

How It Works: This diagram illustrates the LX-FT4's connectivity. It shows connections for rider-to-rider intercom (full duplex) and rider-to-passenger intercom (full duplex). It also depicts connections to a GPS device for navigation instructions and to a Bluetooth-enabled cell phone for calls and music playback using the A2DP profile.

3. Installation Instructions

3.1 Mounting the Bracket

Clamp Mount: Mount the bracket between the internal padding and external shell of the helmet. Tighten the two screws connecting the bracket and clamp plate using the Allen wrench. Note: Adjust the thickness of the rubber pad between the clamp plates based on your helmet's size and shape. Extra rubber pads are included in the box; use a thinner one for less thickness or replace the original with a thicker one to increase overall thickness.

3M Tape Mount: As an alternative for mounting the bracket, use the provided 3M tape. Remove the rubber pad from the bracket, peel off the protective backing sheet of the double-sided 3M tape. Adhere the white side to the bracket and the red side to the helmet. Press firmly for 15 seconds and allow the adhesive to dry for 24 hours. LEXIN recommends the bracket mounting and notes that 3M tape mounting is an option used at the user's own risk.

3.2 Microphone Placement

For Full Face Helmets: Locate an area in the nose section, just to the left of center, to mount the button microphone. Attach the microphone to the velcro pad and connect it to the headset connector.

For Open Face Helmets: Attach the microphone to the velcro pad and adjust its direction so the triangular mark points towards your mouth. Use the boom microphone holder if necessary to secure the microphone.

3.3 Speaker Placement

Place the speakers into the helmet's inner padding, pushing them firmly against the velcro pads. If the helmet has deep ear pockets, use the provided speaker pads to position the speakers closer to your ears.

3.4 Wire Management

Press the wires into the gap between the helmet liner and shell. Note: The speaker with the shorter wire is for the left ear, and the speaker with the longer wire is for the right ear, which also helps enhance FM radio reception.

3.5 Mounting the Main Unit

Mount the LX-FT4 main unit onto the bracket. Attach the top portion first, then slide the main unit down onto the bracket until it clicks firmly into the bottom portion.

3.6 Removing the Main Unit

To remove the main unit from the bracket, press the top part of the bracket and pull the unit out.

4. General Operation Instructions

4.1 Powering On/Off and Charging

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 begins flashing blue and red. Follow the source device's instructions to connect. After successful pairing, the LX-FT4 will automatically connect when turned on if Bluetooth is enabled on the source device. To manually connect, click the [Jog Dial] to connect with the audio source.

5. Controls and Functions

5.1 Volume and Music Control

When music is playing, press and hold the [Jog Dial] for one second to enter track control mode (a beep tone will sound). Within 5 seconds, rotate the [Jog Dial] counter-clockwise for the previous track or clockwise for the next track. After 5 seconds, the [Jog Dial] automatically reverts to volume control mode (another beep tone will sound). Rotate the [Jog Dial] clockwise to increase volume and counter-clockwise to decrease volume. Click the [Jog Dial] to play or pause music.

5.2 Mobile Phone Calls - Incoming and Outgoing

5.3 Bluetooth Intercom Talk

5.3.1 Pairing with Other LX-FT4 Headsets for Intercom Talk

Before pairing for riding communications, it is strongly recommended to clear all existing connections from each unit. To clear connections, press and hold the [A Button] and [B Button] together until the red LED flashes. This will clear all previous connections.

1) Pairing Two LX-FT4 Headsets to Talk

Tip: To start an intercom talk, you must pair the two units first.

Step 1. Pairing two LX-FT4 units: Start with both units powered off. Press and hold the [A Button] on both units for 3 seconds until the LED flashes blue and red.

[Diagram showing two units, each with A and B buttons, and LED indicators. Red and blue lights flashing. Text: "Hold 3s"]

Click the [A Button] on either unit to pair. Once pairing begins, the LED on the clicked unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

[Diagram showing one unit being clicked on the A button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

2) Start an Intercom Talk

Click the [A Button] on either unit to start intercom talk. During an intercom talk, the LED on both units will flash blue 3 times every 3 seconds.

[Diagram showing one unit being clicked on the A button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

3) Disconnect an Intercom Talk

Click the [A Button] or [Jog Dial] button on either unit to disconnect. When disconnected, the LED will blink blue on both units.

[Diagram showing one unit being clicked on the A button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

4) Pairing Three LX-FT4 Headsets to Talk

Tip: Before pairing, please mark each LX-FT4 unit with a different number for better understanding of operation (e.g., end unit one, bridge unit two, end unit three).

Step 1. Pairing unit one with unit two: Start with both units powered off. Simultaneously hold the [A Button] on unit one and unit two for 3 seconds until the red and blue LEDs of both units flash. Click the [A Button] on either unit to pair. Once pairing starts, the LED on the clicked unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

[Diagram showing two units, each with A and B buttons, and LED indicators. Red and blue lights flashing. Text: "Hold 3s"]

[Diagram showing one unit being clicked on the A button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Step 2. Pairing unit two with unit three: Power on unit two and unit three. Simultaneously hold the [B Button] on both units for 3 seconds until the red and blue LEDs flash. Click the [B Button] on either unit to pair. Once pairing starts, the LED on the clicked unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

[Diagram showing two units (unit two and unit three), each with A and B buttons, and LED indicators. Red and blue lights flashing. Text: "Hold 3s"]

[Diagram showing one unit being clicked on the B button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Step 3. Start Intercom Talk (3 Riders): After all three units are paired, unit two will act as the bridge unit. For three-rider intercom talk, it is recommended to initiate the intercom through the bridge unit two.

3.1 Connect end unit one with bridge unit two: Click the [A Button] on unit two or unit one. Once connected, the LED will flash blue 3 times every 3 seconds on both units.

[Diagram showing unit one and unit two, with A button clicked, leading to both units showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

3.2 Connect bridge unit two with end unit three: Click the [B Button] on unit two or unit three. Once connected, the LED on unit three will flash blue 3 times every 3 seconds, while the LED on unit two will turn purple and flash 3 times every 3 seconds after it connects both end units.

[Diagram showing unit two and unit three, with B button clicked. Unit three shows blue blinking LEDs, unit two shows purple blinking LEDs. Text: "Click x1", "LED Indicate"]

Step 4. Disconnect the Intercom Talk:

4.1 To disconnect unit one and bridge unit two: Click the [A Button] or [Jog Dial] button on unit one, or click the [A Button] on bridge unit two. Unit two and unit three will remain connected.

[Diagram showing unit one and unit two, with A button clicked, leading to unit one and two showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

4.2 To disconnect unit two and unit three: Click the [B Button] or [Jog Dial] on unit three, or click the [B Button] on bridge unit two. Unit two and unit one will remain connected.

[Diagram showing unit three and unit two, with B button clicked, leading to unit two and three showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

4.3 To disconnect all three units: Simply click the [Jog Dial] button on bridge unit two.

[Diagram showing unit two, with Jog Dial clicked, leading to all three units showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Note: The LED light on the bridge unit two will flash purple when three units are all connected.

5) Pairing Four LX-FT4 Headsets to Talk

Tip: Before pairing, please mark each LX-FT4 unit with a different number for better understanding of operation (e.g., end unit one, bridge unit two, bridge unit three, end unit four).

Step 1. Pairing unit one with unit two: Start with both units powered off. Press and hold the [A Button] on unit one for 3 seconds until the LED flashes blue and red. Then, do the same on unit two to enter pairing mode on both units. Click the [A Button] on either unit to pair. Once pairing starts, the LED on the clicked unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

[Diagram showing two units (unit one and unit two), each with A and B buttons, and LED indicators. Red and blue lights flashing. Text: "Hold 3s"]

[Diagram showing one unit being clicked on the A button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Step 2. Pairing unit three with unit four: Repeat the same steps used for unit one and two, but with unit three and unit four.

Step 3. Pairing unit two with unit three: With both units powered on, press and hold the [B Button] on unit two for 2 seconds until the LED flashes blue and red. Then, do the same on unit three to enter pairing mode on both units. Click the [B Button] on either unit to pair. Once pairing starts, the LED on the clicked unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

[Diagram showing two units (unit two and unit three), each with A and B buttons, and LED indicators. Red and blue lights flashing. Text: "Hold 3s"]

[Diagram showing one unit being clicked on the B button, with an arrow pointing to both units now showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Step 4. Start Intercom Talk (4 Riders): After all four units are paired, unit two and unit three will act as bridge units. For four-rider intercom talk, it is recommended to initiate intercom talk through the bridge units two and three.

4.1 Connect unit one with unit two: While in standby mode, click the [A Button] on unit two or unit one. Once connected, the LED will flash blue 3 times every 3 seconds on both units.

[Diagram showing unit one and unit two, with A button clicked, leading to both units showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

4.2 Connect unit three with unit four: While in standby mode, click the [A Button] on either unit three or four. Once connected, the LED will flash blue 3 times every 3 seconds on both units.

[Diagram showing unit three and unit four, with A button clicked, leading to both units showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

4.3 Connect bridge units two and three: While in standby mode, click the [B Button] on either unit two or unit three to connect. Once connected, the LED will turn purple on both units and flash 3 times every 3 seconds.

[Diagram showing unit two and unit three, with B button clicked, leading to both units showing purple blinking LEDs. Text: "Click x1", "LED Indicate"]

Tips: To connect Bridge units, click the [B Button]. To connect a Bridge unit with an End unit, click the [A Button] on the end unit.

Note: The LED light on bridge units 2 and 3 will flash purple when they are connected to two units each.

Step 5. Disconnect the Intercom Talk:

5.1 To disconnect unit one and unit two: Click the [A Button] or [Jog Dial] button on unit one, or click the [A Button] on bridge unit two. The other three units will stay connected.

[Diagram showing unit one and unit two, with A button clicked, leading to unit one and two showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

5.2 To disconnect unit three and unit four: Click the [B Button] or [Jog Dial] on unit four, or click the [B Button] on bridge unit three. The other three units will stay connected.

[Diagram showing unit three and unit four, with B button clicked, leading to unit three and four showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

5.3 To disconnect bridge unit two and bridge unit three: Click the [B Button] on either unit. The end units will remain connected (e.g., unit two stays connected with unit one, and unit three stays connected with unit four).

[Diagram showing unit two and unit three, with B button clicked, leading to unit two and three showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

5.4 To disconnect all: Click the [Jog Dial] on both unit two and unit three.

[Diagram showing unit two and unit three, with Jog Dial clicked, leading to all four units showing blue blinking LEDs. Text: "Click x1", "LED Indicate"]

Note: To maximize effective intercom range, keep in mind that each unit is like a link in a chain. Maintain the chain order for maximum communication range. Unit one or four should always lead or follow, with units two and three in the middle in the correct order (e.g., one: two: three: four, or four: three: two: one).

Note: You will hear a beep sound when starting an intercom talk. It may take a few seconds to connect other units; please wait until all units are connected before talking.

If the bridge units two and three are disconnected, the entire group will be disconnected.

If end unit one or unit four is disconnected, the other three units remain connected.

If one unit loses connection with another, the two units on the same channel remain connected. Follow the connecting instructions above to reconnect the disconnected unit when it is back in intercom range.

If one intercom rider goes out of range during a talk, there may be static, and the intercom may eventually disconnect. In such cases, the LX-FT4 automatically tries to reconnect the rider every eight seconds, indicated by high-tone double beeps, until the connection is reestablished. To stop this attempt, press the [Jog Dial] button.

For four riders to communicate successfully, it is suggested to connect the two bridge units (paired using the [B Button]) first, then connect them to the end units (paired by the [A Button]). Since unit two and unit three act as bridges in the chain, keep them within the stated intercom range to maintain continuous communication.

Tips: To save battery power, disconnect the intercom units when not in use.

Important: A bridge unit cannot be connected with a Bluetooth device (phone or GPS) while it is being used as an Intercom Bridge.

5.4 Universal Pairing

To enter pairing mode: Power on the LX-FT4. Press and hold the [B Button] for about 2 seconds until the LED begins flashing blue and red. Follow the other brand's Bluetooth unit instructions to enter pairing mode. Click the [B Button] on the LX-FT4 to pair. Once pairing starts, the LED on the LX-FT4 unit will flash only blue. Pairing is complete and successful when the LED is blinking blue on both units.

To connect the LX-FT4 unit with another: While in standby mode, double-click the [B Button] on the LX-FT4 unit to connect. Once connected, the LED will flash blue 3 times every 3 seconds on the LX-FT4 units.

To disconnect: Click the [Jog Dial] on the LX-FT4 unit.

Note: You can only initiate the intercom from an LX-FT4 unit.

5.5 FM Radio

5.6 Function Priority

The LX-FT4 operates in the following order of priority:

  1. Mobile phone (highest)
  2. Intercom
  3. Bluetooth stereo music, FM radio (lowest)

A lower-priority function is always interrupted by a higher-priority function. For example, stereo music is interrupted by an intercom call, and intercom talk is interrupted by an incoming mobile phone call.

5.7 Reset

To clear previous pairing, press the [A Button] and [B Button] simultaneously until the LED flashes red.

5.8 Battery Life Prompt

Every time you turn on the unit, it will automatically report the current battery life. Double-click the [A Button] to repeat the battery life notification. It will report one of five levels: 100% / 80% / 50% / 30% / LOW.

5.9 Change LED Color

To change the LED color, press both the [Jog Dial] and [B Button]. It will cycle through Blue on, Red on, Red flashing, Purple on, Purple flashing, and Bluetooth indicator light. Changes are visible only in Bluetooth indicator mode for pairing or other settings. Note: LED color changing mode drains battery faster than usual, so use it only when needed.

6. Maintenance and Care

The LX-FT4 should be treated with care. The following suggestions will help maintain your warranty:

These suggestions apply equally to the headset main unit, speaker-microphone clamp unit, and power charger.

7. Certification and Safety Approvals

FCC Compliance Statement

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

RF Exposure Information

FCC RF Exposure requirements: The highest SAR value reported under this standard during product certification for use next to the head with a minimum separation distance of 10mm is 0.134W/Kg. This transmitter must not be collocated or operating in conjunction with any other antenna or transmitter.

This product complies with FCC RF Exposure requirements and refers to the FCC website: https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm. Search for FCC ID: 2ARGO-LXFT4.

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

French Translation Note: The provided text includes French translations for compliance statements, indicating potential multilingual content, but the primary language of the manual is English.

This EUT is compliance with SAR for general population/uncontrolled exposure limits in IC RSS-102 and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528 and IEC 62209. This equipment should be installed and operated with a minimum distance of 1 cm between the radiator and your body. This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter.

8. Warranty

LEXIN warrants that this product shall conform to and perform in accordance with published technical specifications and the accompanying written materials, and shall be free of defects in materials and workmanship, for a period of two (2) years from the date of purchase by the first consumer purchaser of the Product. The limited warranty extends only to the original consumer purchaser of the Product and is not assignable or transferable to any subsequent purchaser/end-user.

This warranty is limited to the repair and/or replacement, at LEXIN's discretion, of defective or non-conforming Product. LEXIN shall not be responsible for the failure of the Product to perform specified functions, or any other non-conformance caused by or attributable to: (a) any misapplication or misuse of the Product; (b) failure of Customer to adhere to any of LEXIN's specifications or instructions; (c) neglect of, abuse of, or accident to, the Product; or (d) any associated or complementary equipment or software not furnished by LEXIN.

Limited warranty service may be obtained by delivering the Product to LEXIN or to the international distributor it was purchased through, and providing proof of purchase or receipt date. Customer agrees to insure the Product or assume the risk of loss or damage in transit, to prepay shipping charges to LEXIN, and to use the original shipping container or equivalent.

9. Waiver and General Release

By using the Product, you will waive substantial legal rights, including the right to sue. Please read the following carefully before using the device. By using the Product, you agree to be bound to this agreement and forfeit the right to sue.

By using the Product, you are irrevocably releasing, indemnifying from any liability, loss, claim, and expense (including attorney's fees) and holding LEXIN harmless for any bodily injuries, harm, or death, as well as losses or damages to goods, vehicles, or property, which may result from using the Product under any circumstances or conditions and irrespective of jurisdiction.

9.1: You, your heirs, legal representatives, successors, or assigns, hereby voluntarily and forever release, discharge, indemnify, and hold harmless LEXIN from any and all litigation, claims, debts, demands, actions, and liability which may arise, directly or indirectly, from using the Product for any distress, pain, suffering, discomfort, loss, injury, death, or damages to any person or property, however caused, WHETHER ARISING FROM THE NEGLIGENCE OR OTHERWISE, and which may hereafter accrue to you on some future date as a result of said use, to the fullest extent permitted by law.

9.2: You fully understand and assume the risks in using the Product, including the risk of negligent acts or omissions by others. All risks for operating the Product are assumed solely by the user of the Product.

9.3: You confirm that you are physically capable to use the Product and have no medical conditions or needs that may infringe upon your abilities to do so safely. You confirm that you are at least eighteen (18) years of age and have been advised of the risks associated with the use of the Product. You further confirm that you will not consume any alcohol that may affect your alertness or any mind-altering substance, and will not carry, use, or consume these substances before or during the use of the Product.

9.4: You fully acknowledge our warnings and understand that:

You hereby assume all risks and dangers and all responsibility for any losses and/or damages, whether caused in whole or in part by the negligence or other conduct of others, including LEXIN.

9.5: By using the Product, you confirm that you have read this release of liability and fully understand and accept its terms and conditions.

WARNING: PLEASE CHECK ALL LOCAL LAWS AND REGULATIONS REGARDING THE USE OF IN-HELMET SPEAKERS WHILE OPERATING MOTORIZED VEHICLES.

Contact Information

Website: WWW.LEXINMOTORCYCLE.COM

Email: tech@lexinmotorcycle.com

Phone: +1 (800) 380-8248

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