This is the Bluetooth-enabled rear view mirror that displays and verbally announces incoming caller numbers and names, enabling calls through its built-in speakerphone. Clamping over an existing rearview mirror, the device connects wirelessly to any Bluetooth-compatible cell phone, synchronizing with a cell phone's contacts (required for name announcements), allowing hands-free conversations without the use of cumbersome wires and standalone speakers. The mirror's powerful speaker uses full-duplex noise- and echo-cancellation for clear audio, producing powerful 100 dB sound. Alternatively, audio can be transmitted to an unused frequency on a car's FM radio to use the car's speakers. When privacy is desired, the included wireless in-ear headset can be used; calls are automatically routed to the headset when removed from the mirror, and return to the speakerphone when the headset is replaced. A three-hour charge of the mirror's lithium battery using its included car charger provides 15 hours of talk time. Not for use with OnStar products. 3 1/4" H x 12" W x 1 3/4" D. (10 1/2 oz.)