Product description You may need an In-car FM transmitter to stream music from your phone, tablet, MP3, MP4, TF card, even USB flash disk to the car stereo system. Take hands-free calls for pleasurable driving experience! Super Clear Large Screen The 1.44 inches large screen will show incoming call number, voltage level in car battery, volume, FM frequency and song name if you play music from TF card or USB flash disk. Dual USB Ports: The 5V/2.1A USB port is for fast charging, the other one with USB icon is for reading U disk. Support charge 2 devices at the same time. Large Screen. 1.44 inches Large Screen can show incoming call number, voltage level in car battery, volume, FM frequency and song name if you play music from Micro SD card or USB flash disk. Easy to read at night and in the day. Flexible and Convenient. The flexible neck can be adjusted to the perfect viewing angle for convenient use; Memory function makes auto-connect to the last paired phone possible. High Stereo Sound. Easily make crystal clear hands-free calls with CVC noise cancellation technology.