Bluetooth Wireless FM Transmitter for Car Radio with Hand-free Calling Voice Dialing and USB Charging Port for Smart Phones SkyGenius High quality Bluetooth 4.0 FM transmitter with crystal clear sound, hand-free calling,great convenience and safety to your driving, Unique Voice Dialing: Just click the Voice Command Button once, active the voice dialing software such as iPhone Siri, S Voice and Google Now on your phone. Say the name of the person or number you wish to call, the call will then be placed, Wireless FM Transmitter: Enjoy your ideal FM frequency in your car. Music in your mobile phone can be transmitter to car sound box over FM frequency. Basic operation is clear shown on instruction manual. Tips and warning also included, Unique design, adjustable and flexible high quality neck , included the USB port for fast charging, Easy to pair and simple to use, pair with most bluetooth & fm devices in the market, like car stereo and iPhone 6 6plus 6S, 5 5S 5C, Samsung Galaxy S6 Edge, Blackberry, Huawei and Andriod Mobile Phone.