BlueAnt Supertooth Light Bluetooth Speakerphone (Black) Handsfree speakerphone for a safer, legal alternative to talking on your cell phone while driving; affix to the sun-visor via a two sided magnetic clip Full duplex, high-performance speaker; DSP noise cancellation/echo cancellation adjusts sound levels to compensate for loud engine noise, wind Sliding microphone shaft retracts when not in use; supports voice dial activation, redial and call reject Bluetooth version 2.0; up to 15 hours of talk time, up to 800 hours of standby Includes: Bluetooth handsfree unit, travel charger, 1 sun visor clips, user manual