Project details

  • Date

     January 8, 2017

  • Client

     The cardo SMARTH DUO communication system featuring DMC technology is the first motorcycle communication system designed for and recommended by HJC helmets.
    The scala rider SMARTH DUO includes 2 pre-paired units.
    Buy Single
    Buy Duo

Riding in a group can be the ultimate thrill for many riders, but those who do it regularly know that it can also be a challenging experience at times. Pairing within the group is time consuming and the traditional Bluetooth daisy chain connection can often be disrupted. With Cardo's Dynamic Mesh Communication technology (DMC) this is a thing of the past!

With the DMC technology on board, full 4-way intercom conversations are seamless and the group remains constantly connected at an astounding range of up to 3.6 km. Speak as freely and easily as if you were no more than a meter apart.

To further enjoy your riding experience, listen to your favorite music from an MP3 player, talk with friends over the phone, or keep updated with helpful GPS instructions. Everything will sound crystal clear with the new 40 mm thin HD speakers which can also easily be substituted with a pair of your choice.

With safety in mind, operate the SMARTH virtually hands-free with voice commands. Additional great features include sharing an FM radio station with another rider, connecting with friends using non-cardo headsets and much more.

On-the-go configuration and control of this device has been made easier than ever thanks to the Cardo SmartSet App and the software updates available on the Cardo Community web platform ensure you'll never be left behind.

We've got everything covered – Just enjoy the ride!

List of HJC Compatible helmets:

  • RPHA 11 (U.S.: RPHA 11 Pro)
  • RPHA MAX Evo
  • FG-JET
  • IS-33
  • CL-17 (U.S. Only)
  • CS-15
  • FG-ST
  • TR-1 (EU only)
  • RPHA 70
  • IS-17
  • IS-33 II
  • DMC– INTERCOM Technology for Seamless Communication between 2-4 riders at a range of up to 3.6km
  • 4-Way Bluetooth Intercom Conferencing
  • 1+8 Intercom Toggling
  • Bike-to-Bike Intercom at a range of up to 1.2km
  • Click-to-Link® spontaneous intercom conversations with other near-by Cardo devices
  • Cardo Gateway™ For intercom conversations with non-Cardo devices
  • Mobile Phone Operations – make, receive, reject calls
  • Receive GPS (Sat Nav) audio instructions
  • Connect wirelessly to MP3 player via A2DP for stereo music
  • Parallel Audio Streaming
  • Music Sharing™ between rider and passenger
  • Intercom to mobile (pat. pend.)
  • FM Radio with RDS and Radio Sharing Bike-to-Bike
  • Speed Dial
  • Cardo Community® web platform for software updates and customization of settings
  • AGC Technology - automatic adjustment of speaker volume level according to ambient noise and riding speed
  • Cardo SmartSet App for remote control and on-the-go setting customization (iOS / Android)
  • Intercom Voice Activation / Phone Call Voice Activation
  • Spoken Status Announcements
  • Voice command
  • Ultra-Slim Design
  • Talk Time: 13 hours / Standby: 1 week
  • Hybrid / Corded Interchangeable Microphones
  • Waterproof and Dustproof
  • Slim HD 40 mm Stereo Speakers (replaceable)


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cardo SMARTH - Features
  • cardo_smarth_final_product_website
  • cardo_smarth_1_website
  • cardo_smarth_unit_website
  • smarth_on_hjc_rpha_11_helmet_website
  • smarth_with_box_website_1