Thanks to Bluetooth wireless technology, your mobile phone no longer needs to be physically connected to your car. So long as your phone supports Bluetooth? a connection between it & the handsfree unit is automatically established when the ignition is turned on. The sound is routed to your cars loudspeaker via a Kenwood head-unit/monitor. The KCA-BT200 is compatible with most of current & future Bluetooth mobile phones. You do not need to buy an expensive handsfree kit that only works with one phone & quickly becomes outdated. Kenwoods BT200 makes safe, handsfree conversation easy & affordable. Connects to compatible Kenwood Head Units (Kenwood head units that accept CD changer) Safe & easy use of your mobile phone while driving Automatic Incoming Call Answering Function Making Calls from Phonebook Making Calls from Incoming Call History Making Calls from Outgoing Call History Direct Dial Function Private Talk Function Connection Status Display Function