The SuperTooth One is a Bluetooth handsfree kit that supports headset and handsfree profile phones. This handsfree kit is equipped with hi-tech features such as: Voice Answer Technology / Multi-point Connection / Full DSP Noise Cancellation / Echo Cancellation. It can also be used as a speaker to stream music from your phone over A2DP (Advanced Audio Distribution Profile). This speakerphone car kit is designed for easy handsfree operation and superior performance.