Bluetooth & TF Card & USB Driver Audio: Wirelessly stream high quality stereo audio via Bluetooth connection to compatible devices or insert Micro SD card or USB flash driver (both up to 32GB capacity)</br>Ergonomic Design: Compact gadget with special knob design. High contrast digital screen display for higher visibility</br>Multifunctional: With built-in microphone you can enjoy hands-free phone calls and audio streaming music on the road. Also can charge any 2 USB devices simultaneously</br>Easy to Use: Simply plug into cigarette lighter socket. Control directly as an FM transmitter or via remote control</br>Dual USB Output: Equipped with dual USB port(5V/2.4A 5V/1A) charge your digital devices total up to 3.4A</br></br>Product Description</br></br><b>iClever</b><br> Utilizing state-of-art Bluetooth FM transmission technology this unit takes the hands-free audio experience to an entirely new level<br> Audio can be streamed via Bluetooth-enabled devices or insert a Micro SD card(over Class 6) or USB driver flash. Comes equipped with a high-contrast digital screen and remote control. As an added bonus it comes with 2 extra USB ports to charge your device simultaneously. The most convenient?? easy and beautifully designed hands-free transmitter yet<p> <b>Operation Guide</b><br> 1. Plug the FM transmitter