With superior sound quality to most any FM Transmitter on the market, the Accessory Power Professional Series GG-SMARTMINI-BT Bluetooth FM Transmitter features an enhanced FM Bluetooth transmitting chipset with DC surge protection. A well designed display and easy to use auto-tune frequency finder makes tuning into your music simple. Sync the GOgroove SMARTmini to your Bluetooth device in seconds and enjoy a wireless music listening experience. Equipped with Bluetooth hands-free technology, it's easy to answer and talk on your phone while driving. Users are able to make and receive phone calls through their car speakers. If music is playing, the GOgroove FM Transmitter will slowly fade out when a call comes in and allowthe user to clearly connect to any phone call by the simple touch of a button on the control hub. The side-loaded USB charging port allows users to charge smartphones, MP3 players or other USB-enabled devices.