By 2013, nearly 2.4 bln units of Bluetooth-enabled equipment will ship worldwide, with more than half that number representing cell phones, and when headsets are added, it brings the phones and headsets to more than 75% of the Bluetooth market, said ABI Research. Worldwide, by 2013, nearly 30% of all new cars will include hands-free features. Bluetooth aftermarket – independent makers of add-on vehicle products – is thriving. In 2007, it was around 25 mln units, a 54% increase from 2006.