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8-7-2013

“The cardo BK-1 allows cyclists to talk while cycling at a distance of up to 500 meters. Thanks to the addition of two new channels, up to 5 users can now communicate in parallel”

http://www.mountainbike-magazin.de/news/bikes-parts/kostenloses-update-fuer-das-cardo-bk-1-bluetooth-kommunikationssystem-fuer-biker.796514.2.htm