In the Kinivo BTC450 is a small, universal Bluetooth speakerphone. The speakerphone is delivered well protected in a small carton. It comes with the speakerphone are with a car USB adapter, two adhesive pads, as well as a jack extension cable. The installation designed very simple. It must be plugged only the USB car adapter in the car outlet. Then glued to the round control panel to the desired location in the vehicle. After the speakerphone on a 3.5cm jack cable to the AUX port of the car radio is connected. As a last step is using their smartphone via Bluetooth wireless technology to connect to the speakerphone. Processing handsfree a quality image and sound. The voice quality is excellent and there is nothing to complain about. Unlike many other cheap handsfree hear no echo, reverb or noise. Also can be handsfree music from your phone through the car radio to hear. The title is controlled via the control unit of the hands-free round. Here too, the sound quality is excellent. All sin all I am very satisfied with the Kinivo speakerphone and can safely recommend it!