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. Special Features: Bluetooth hands-free kit version 2.0 Quick fixation on sun visor via clip Headset and hands-free profiles Multipoint : 2 phones can be paired simultaneously Stream music from A2DP Bluetooth phones Full Duplex DSP Operating range : 10 meters Frequency : 2.4 GHz Rechargeable Lithium-Ion battery Voice recognition dialling (if phone supports) Last call redial Reject incoming call Talk time : 15 hours Stand-by time : 800 hours Charging time : 3 hours