According to the Seattle Times, more than 800,000 CB radios are sold in the US and recently Cobra's CB which makes a fair chunk of the market has decided to go for an upgrade.

Its latest model features a Bluetooth wireless connection so truckers can integrate a mobile phone into the CB radio.
 

This means that calls are routed through the The Cobra 29 LTD BT CB radio, which can help truck drivers conform to hands-free driving laws