New Bluetooth Speakerphone Handsfree car kit For in-Car use as handsfree car kit: Advanced Built-in Microphone,with D.S.P. solution for Echo Cancellation & Noise Suppression For your Home, Office, Car and anywhere you like without the hassle of putting on the earpiece; voices were crisp and clear. Bluetooth Profile Supported: Headset & Hands-Free Profiles Bluetooth V2.0, Class 2, Working range of up to 30 Meters Talk Time: Up to 12 hours ;Standby Time: Up to 480 hours /20days.