Turn up the volume with this bluetooth fm transmitter with dual usb car chargerr package includes 1 x bluetooth car charger 1 x aux cable and 1 x manualr a full frequency fm transmitter with an easy to read digital displayr supports aux line audio inputr power off switch usb direct connectr supports u disk player mp3 and wma format musicr bluetooth answer reject calls as well as bluetooth stereo music playr features echo cancellation and noise suppression cvc