AGPTEK Wireless Bluetooth FM Transmitter with 3.5mm Audio Jack and USB Car Charger,Black Enjoy Music with Higher Quality:Adopt high-performance Bluetooth module, built-in MP3/WMA decoder chip that can transmit music files inside the USB disk ?TF card ?mobile phone to car stereo via wireless. Hands-Free Calls?Built-in microphone and Bluetooth-enabled offer your clear talking and wonderful music. Automatically switches to incoming calls when playing music Supports AUX Output and Input:Transforms any device (e.g. TV, computer, MP3 player, PSP, laptop) with 3.5mm audio jack,Supports all frequency point to launch, frequency range from 87.5 to 108 Mhz USB Fast Charge:Output voltage,DC 5V,2.5A(maximum) With car charger function itself, You can charge your iphone/Ipad/tablet/and other smartphone when you enjoy your driving What'S More:Compatible with iPhone iPad, iPod, Samsung Devices and other smart phones ,Supports MP3/WMA/WAV/FLV music format, Supports playing music by USB disk and TF card.