The Cobra 29 LTD BT uses Bluetooth wireless technology to pair a driver’s cell phone to the radio to make and receive phone calls while driving. The radio features a microphone that minimizes background noise, and incoming audio is routed through the radio’s 5-watt speaker. The auto redial feature allows for one-touch redialing of the last phone number called. The 29 LTD BT has all the functions of the standard Cobra 29 Series CB radio. The radio also provides instant access to emergency Channel 9.