Cardo SYNC – Connect Your World
Cardo SYNC is Cardo's first communication system designed specifically for cycling. It clips onto the straps of your existing open-face helmet and connects you to your riding group, your phone and your music – while open-ear audio keeps you aware of traffic and your surroundings.
Whether you ride with a social bunch, train with a crew or commute solo, SYNC lets you chat as naturally as riding side by side. Talk to your crew. Keep your helmet.
Key features
- Cellular intercom – talk rider-to-rider with groups of up to 30 via the Cardo Connect app. Range is limited only by mobile coverage, so the group stays connected as riders spread out and regroup.
- Open-ear design – your ears stay uncovered so you can hear traffic, trail users and everything around you.
- Built for wind – cycling-specific audio with advanced wind noise reduction for clear conversations at speed.
- Music, calls and navigation – stream music, take hands-free calls, hear navigation prompts and use Siri or Google Assistant while your phone stays in your pocket.
- Fits your helmet – mounts to the straps of most open-face cycling helmets (MTB, road, gravel and commuter) and works with most cycling eyewear. No new helmet needed.
- Featherweight – just 19 g per side.
- All-day battery – up to 11 hours of talk and playback, with fast charging.
- Auto on/off – switches on and off automatically with movement.
- Shimano Di2 / STEPS compatible – connect to your Shimano system for remote control from the bars.
- IP54 rated – protected against dust and splashing water, rain or shine.
Specifications
| Intercom | Cellular (VoIP) via Cardo Connect app |
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| Group size | Up to 30 riders |
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| Range | Unlimited within mobile network coverage |
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| Talk / playback time | Up to 11 hours |
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| Charging | Fast charge supported |
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| Weight | 19 g per side |
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| Water resistance | IP54 |
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| Helmet fit | Most open-face cycling helmets (min. strap length 7.5 cm) |
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| Audio | Open-ear speakers, 4 sound profiles, wind noise reduction |
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| App | Cardo Connect – free, no subscription (iOS 16+ / Android 10+) |
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Rider-to-rider intercom requires a mobile data connection and the free Cardo Connect app on each rider's phone. Data use is similar to other VoIP calling apps such as WhatsApp.