Sena BiKom 20 Cycling Communication System User Manual

Quick Overview

Key:

• +: Plus Button
• C: Center Button
• -: Minus Button

Before Use

Sena Cycling App

Download the Sena Cycling app from the Google Play Store or the App Store.

[Sena Logo] [QR Code for App Download]

Information about BiKom 20

Key Features

• Mesh Intercom 3.0 with improved sound quality, more stable connection, and longer talk time.
• Flip microphone for easy muting/unmuting.
• Bluetooth® Version 5.2.
• Real-time voice notifications about riding status.
• Over-the-Air (OTA) firmware updates.

Device Diagram:

[Image description: A diagram showing the BiKom 20 device with numbered callouts pointing to:

1. Plus Button (+)
2. Center Button
3. Minus Button (-)
4. Status and Charging LED
5. USB-C Port for Charging Cable

]

Package Contents

• BiKom 20
• Mounting Strap for Thick Straps
• Mounting Strap for Thin Straps
• Clip Attachment for Caps
• Microphone Sponges (x2)
• USB-C Charging Cable

Installation

Mounting Strap

1. Step 1: Attach the mounting bracket to the helmet strap. [Diagram showing bracket attachment]
2. Step 2: Secure the BiKom 20 to the bracket. [Diagram showing BiKom 20 attachment]
3. Step 3: Position the microphone. [Diagram showing microphone placement near the mouth]

Clip Attachment for Caps

1. Step 1: Slide the clip onto the cap. [Diagram showing clip attachment to a cap]
2. Step 2: Attach the BiKom 20 to the clip. [Diagram showing BiKom 20 attachment to the clip]
3. Step 3: Adjust the microphone. [Diagram showing microphone adjustment]

Basic Operation

Button Actions:

• Tap: Tap the button as specified.
• Press and Hold: Press and hold the button as specified.
• Voice Prompt: Indicates a voice announcement.
• LED: Status indicator light.

Charging

[Diagram showing USB-C cable connected to BiKom 20 for charging. Two states are indicated: "Device is charging" and "Device is fully charged".]

It takes 2.5 hours for the device to fully charge.

• Any USB charger from another manufacturer can be used if it has FCC, CE, or IC approval, or other regionally recognized approval from a regulatory authority.
• Using an unapproved charger may lead to fire, explosion, or leakage of gas or liquid. Other hazards may reduce the battery's lifespan or performance.

Powering On/Off

• Power On: Press and hold the Center button (C) and Plus button (+) for 1 second.
• Power Off: Press and hold the Center button (C) and Plus button (+) for 1 second.

Microphone Mute/Unmute

Use the swivel microphone arm to mute or unmute the microphone.

• Mute: Voice prompt "Microphone muted".
• Unmute: Voice prompt "Microphone unmuted".

Volume Control

Press the Plus (+) or Minus (-) button once to adjust the volume.

Mesh Intercom

The BiKom 20 offers two Mesh Intercom modes:

• Open Mesh™: For open group communication via the intercom system.
• Group Mesh™: For private group communication via the intercom system.

Open Mesh

[Diagram illustrating Open Mesh connections between multiple users on different channels.]

Group Mesh

[Diagram illustrating Group Mesh connections between multiple users forming a private group.]

Switching Mesh Versions

Mesh 3.0 is the latest Mesh Intercom technology. To communicate with older products using Mesh 2.0, switch to Mesh 2.0 using the Sena Cycling app.

Mesh Intercom On/Off

• On: Voice prompt "Mesh Intercom on, Open Mesh, Channel 1".
• Off: Voice prompt "Mesh Intercom off".

Channel Selection

1. Access channel settings by pressing the Center button (C) twice.
2. Navigate between channels by pressing the Plus (+) or Minus (-) button.
3. Confirm and save the channel by pressing the Center button (C) once. The device will announce the selected channel.

The channel is automatically saved if no button is pressed for 10 seconds or if the BiKom 20 is turned off.

Group Mesh Creation

A private group conversation can be set up for up to 24 participants using Group Mesh.

1. Create Group Mesh: Users (You, A, and B) join the mesh grouping by pressing and holding the Center button (C) for 5 seconds while in Open Mesh. Users do not need to be on the same Open Mesh channel to create a Group Mesh. Voice prompt: "Mesh grouping".
2. After the mesh grouping is complete, it automatically switches from Open Mesh to Group Mesh. Voice prompt: "Group Mesh".

Cancel Grouping: Press the Center button (C) once.

If grouping is not completed successfully within 30 seconds, you will hear the voice prompt "Grouping failed".

Joining an Existing Group Mesh

While in a Group Mesh, you can invite other users from Open Mesh to join the group.

[Diagram showing users A and B in Group Mesh, and users C and D in Open Mesh, with an invitation to join.]

1. Users C and D join the mesh grouping by pressing and holding the Center button (C) for 5 seconds. Voice prompt: "Mesh grouping".
2. Once mesh grouping is complete, users C and D will automatically join the Group Mesh, while the Open Mesh remains active. Voice prompt: "Group Mesh".

New Participants (C and D):

If grouping is not completed successfully within 30 seconds, the current user (You) will hear two low beeps, and the new users (C and D) will hear the voice prompt "Grouping failed".

Switching Between Open Mesh and Group Mesh

You can switch between Open Mesh and Group Mesh without resetting the mesh.

[Diagram illustrating the switching process between Open Mesh and Group Mesh.]

• Press and hold the Center button (C) for 3 seconds to switch. Voice prompts: "Open Mesh" or "Group Mesh".

If you have never participated in a Group Mesh, you cannot switch between Open Mesh and Group Mesh. You will hear the voice prompt "No group available".

Reset Mesh

When the BiKom 20 resets the mesh, whether in Open Mesh or Group Mesh, it automatically returns to Open Mesh, Channel 1.

Press and hold the Center button (C) for 8 seconds. Voice prompt: "Mesh reset".

Using with a Smartphone

Phone Pairing

1. Step 1: Press and hold the Center button (C) for 5 seconds. Voice prompt: "Phone pairing". [Diagram showing device and phone pairing process.]
2. Step 2: Select "BiKom 20" on your smartphone's Bluetooth menu. [Diagram showing smartphone Bluetooth menu.]

Press any button to complete the smartphone pairing.

Making and Receiving Calls

• Answer Call: Press the Center button (C) once.
• End Call: Press and hold the Center button (C) for 2 seconds.
• Reject Call: Press and hold the Center button (C) for 2 seconds.
• Activate Voice Assistant: Press and hold the Center button (C) for 3 seconds.

Speed Dial

Assigning Speed Dial Presets

Speed dial presets are configured using the Sena Cycling app.

Using Speed Dial Numbers

1. Access the speed dial menu by pressing the Center button (C) for 3 seconds.
2. Navigate forward or backward through the speed dial presets by pressing the Plus (+) or Minus (-) button once. Options include:
   • Redial
   • Speed Dial (1→2→3)
   • Cancel
3. Confirm by tapping the Center button (C) once. Voice prompt: "Speed dial (#)".

Music

• Play/Pause Music: Press and hold the Center button (C) for 1 second.
• Fast Forward or Rewind: Press and hold the Plus (+) or Minus (-) button for 1 second.

Acoustic Cycling Computer

The BiKom 20's Acoustic Cycling Computer (ACC) connects with bicycle sensors and provides real-time voice notifications about your ride. By pairing the BiKom 20 with Shimano's digital intelligence system (Di2), you receive uninterrupted voice updates.

• Check local laws and regulations before use.
• Using this feature while riding may pose a safety risk. Stay alert and ride cautiously.
• Use of this feature is at your own risk and responsibility.

Pairing BiKom 20 with Shimano Di2

To use the ACC function with Shimano's Di2 system, you must first pair the BiKom 20 with the Di2 system.

Shimano Di2 System

Activate the Bluetooth mode of your device.

1. Access the configuration menu by pressing and holding the Center button (C) for 10 seconds. Voice prompt: "Configuration menu".
2. Navigate to the Shimano pairing option by pressing the Plus (+) button once. Voice prompt: "Shimano pairing".
3. Wait for a voice announcement. Voice prompt: "Shimano connected".

To cancel: Tap the Minus (-) button and then tap the Center button (C) to exit.

If pairing is not completed within 3 minutes, you will hear the voice prompt "End". Then repeat the first step.

Voice Notifications

Once Shimano pairing is complete, the BiKom 20 provides the following types of voice notifications:

• Shift Mode Selection: Based on your selection, a voice prompt informs you of the current shift mode. The Di2 system offers three shift modes: "Manual shifting mode", "Synchro-shift mode 1", "Synchro-shift mode 2".
• Gear Shifting: When you shift gears, a voice prompt informs you of the current gear position. Voice prompts: "Forward gear #" and "Reverse gear #".
• Battery Status: When the battery level drops below 10 percent, you will be notified by a voice prompt: "Shimano battery is low".

Firmware Update

You can update the firmware Over-the-Air (OTA) directly through the settings in the Sena Cycling app.

Troubleshooting

Reset

Simply use the corresponding function to reset the BiKom 20 to factory settings.

1. Access the configuration menu by pressing and holding the Center button (C) for 10 seconds. Voice prompt: "Configuration menu".
2. Select "Factory settings" by pressing the Plus (+) button twice. Voice prompt: "Factory settings".
3. Confirm by pressing the Center button (C) once. Voice prompt: "Headset reset, goodbye".

Reset on Malfunction

If the BiKom 20 is on but not responding, you can reset it to factory settings to restore functionality. Ensure the USB-C charging cable is disconnected, then press and hold the Plus (+) button and the Center button (C) simultaneously for 8 seconds until the device restarts. All settings remain unchanged.

Copyright and Legal Information

Copyright 2025 Sena Technologies, Inc. All rights reserved.

© 1998-2025 Sena Technologies, Inc. All rights reserved.

Sena Technologies, Inc. reserves the right to make changes and improvements to its products without prior notice.

Sena™ is a trademark of Sena Technologies, Inc. or its subsidiaries in the USA or other countries.

The Bluetooth® word mark and logos are registered trademarks of Bluetooth SIG, Inc. and any use of such marks by Sena is under license.

Sena Technologies, Inc.
152 Technology Drive, Irvine, CA 92618