Kartice(TM) Car Bluetooth Wireless Fm Radio Transmitter with Dual USB Charging and Music Control and Hands-free Calling Black Newest version : Hands-free calls, enjoy clear music, GPS voice navigation, charge your device This product not only can play the MP3 music from your cellphone by 3.5mm audio cable but also support USB flash disk playing Built-in microphone makes hands-free calls easy. With the product, you can greatly enjoy music and picking the call up during driving for safety An universal USB charging port for charging mobile phones and other devices (output: DC 5V/1A), so you can power up while you're talking or listening to music Adapting with professional-grade bluetooth Module, this product can play the music from your phone , tablet PC or U disk nondestructive by your car's stereo