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Cardo BK-1 Duo Cycling Bluetooth System

Item #: EL244B01
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The Cardo BK-1 is the world’s first Bluetooth cycling communication and entertainment system. The Cardo BK-1 allows its users to communicate with 3 other Cardo BK-1 cyclists. Connect to your Bluetooth on your mobile phone, GPS, and MP3 player. Whether you are cycling alone or in a group, the Cardo BK-1 will make cycling more sociable, entertaining, and safer.

Use the Cardo BK-1 intercom when cycling with friends or your significant other. The Cardo BK-1 allows simultaneous intercom cycling communication between 3 cyclists at a distance up to 500m/ 1,640 feet. Cyclists can ride at a distance and still remain in contact with one another. If you are planning to introduce your significant other to cycling, the BK-1 will ensure that they feel safe and connected at all times. If a rider has a flat tire or takes a digger, this can be communicated with amongst riders, so riders know to turn around or wait. The Cardo BK-1 allows you to answer calls while on the trail. Listen to your favorite jams while on a solo ride. Should a call come in, the music will go silent, so you’re able to answer to call. You’ll never be alone with the BK-1.

The intuitive Voice Command operation and Click-to-LinkĀ® allow you to keep your hands on the bar, instead of fumbling on your phone while riding. With intuitive embedded voice control, cyclists almost never have to remove their hands from the handlebars. To accept an incoming call simply say “Yes.” The Cardo BK-1 will connect the call for you. High end speakers hovering above the ears deliever excellent quality sound and comfort.

The Cardo BK-1 is feather- light. Weighing less than 50 grams, you’ll hardly notice it sitting on your helmet. If you should ride through a small creak or get caught in a summer rain, do not fear. The Cardo BK-1 is waterproof and dustproof.


  • Fits virtually all bicycle helmets
  • Lightweight aerodynamic design
  • Waterproof and dustproof- certified to meet IP67 standards
  • Up to 7 hours talk time/ 1 week standby
  • 110/240V 50/60Hz Universal Charger
  • Battery Type: Rechargeable Li- Polymer
  • Charging Time: 3 hours
  • Hovering speakers with flexible boom for maximum cyclist comfort

Key Functions/ Features:

  • Make/ Receive/ Reject mobile phone calls either by voice command or at the push of a button
  • Connect wirelessly to A2DP/ AVRCP enabled MP3 players for stereo music (cable option also provided)
  • Receive in- the- ear GPS navigation voice instructions (requires Bluetooth compatibility)
  • Upgradeable software
  • Digital Signal Processing (DSP) for advanced functionality
  • Echo cancelation for increased audio clarity

MDC- Multiple Device Connectivity
Parallel Connectivity Options:

  • Intercom conferencing among 3 Cardo BK-1 users
  • Mobile phone (incl. iPhone)/ GPS device
  • MP3 player

Package Contents:

  • 2 Cardo BK-1 Units
  • 2 audio kits with attached speakers and microphone units
  • 2 travel chargers
  • 2 MP3 cables
  • 2 USB cables
  • Accessories
  • Manual


by PowerReviews
Cardo BK-1 Duo Cycling Bluetooth System

(based on 3 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars




of respondents would recommend this to a friend.

Reviewed by 3 customers

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Displaying reviews 1-3

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(2 of 2 customers found this review helpful)


Terrible system

By Sean the biker

from Clarksville, tn

About Me Competitive Cyclist

Verified Buyer



    • Poor Construction

    Best Uses

    • Road Biking

    Comments about Cardo BK-1 Duo Cycling Bluetooth System:

    The left ear piece for both headsets DO NOT work. I followed the manual on proper operation and neither piece works. After one ride my headset quit working. I trouble shot the head set with the manual and it will not come back on line. I am a USAT coach and was planning on using this with my clients, so I am disappointed that they do not work. I have experience with avionics and head sets so the fact I cannot get them to work says a lot! I will try another brand. Terrible product for the money. I am returning it.

    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)


    Very good.

    By Marco Ferreira

    from Curitiba - PR - Brasil

    About Me Casual/ Recreational

    Verified Buyer


    • Versatile


    • Heavy

    Best Uses

    • Extreme Sports

    Comments about Cardo BK-1 Duo Cycling Bluetooth System:

    Good product

    • Cycling Style:
    • Comfort Oriented
    • Was this a gift?:
    • Yes

    (1 of 1 customers found this review helpful)


    So Cool

    By Sean

    from Riverside, CA

    Staff Reviewer


    • Clear Sound
    • Good battery power


      Best Uses

        Comments about Cardo BK-1 Duo Cycling Bluetooth System:

        I used headphones for years and then I made the switch to the Cardo system. I initially got it so that I wouldn't have wires getting tangled up in my helmet from the headphones but the sound quality through the speakers and the noise cancelling through the microphone really had me stoked. Battery life is what I would expect with enough juice to get through a 4 hour ride. The only thing I would like to see improved is the wire in the ear piece that makes them adjustable could be a little better at maintaining it's position. Road riding is fine but mountain biking can cause the ear pieces to change position. Overall I think it is a great system and worth the price, even though it is expensive.

        • Was this a gift?:
        • No

        Displaying reviews 1-3

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