Auto-scan to find an empty station to connect to a device and transmit audio</br>Play audio devices and smartphones through your car stereo system with 3.5 mm jack. Comes with an extra USB port to charge your cell phones?? GPS and other digital devices while driving</br>Features a high-contrast?? easily-read display and prominent button controls</br>Simply plug in your audio device through 3.5mm jack?? autoscan or manual to select and set a ramdon FM channel?? and tune the car FM audio to that channel</br>Package includes: JETech FM transmitter?? instructions manual. 6-Month Warranty from JETech</br><br/>http://www.amazon.com/gp/product/B0159ST8AU