The BlueAction Bluetooth Handsfree Car Kit is a wireless solution designed for secure driving and safe cell phone communication via Bluetooth. No installation required, simply attach to sunvisor. Phone numbers are displayed on car kit and calls can be taken through built in speaker phone, or for a little more privacy, through an included independent Bluetooth headset. Thanks to BlueAction, you can drive and take mobile calls safely, easily and freely. Its safe driving, simplified!