Clip on rearview mirror with Bluetooth technology built in for pairing with your mobile phones, and a USB Port and SD/MMC card slot for directly playing MP3 and WMA music. This rearview mirror communication center is easy to install on almost any preexisting rearview mirror with its pinch clip design, has a built in LCD display for displaying caller ID, information, and a received call log, 2 loud 1W speakers, an FM transmitter for listening on your own cars audio system, and a wireless earphone for private listening. This is a perfect item for not only safety on the road, but for having a good time at the same time.