... /SD Card 3. 1.8" LCD 4. Folder/Phonebook/Caller ID 5. Line-in Key Features:- Bluetooth mobile phone hands-free ... ;- 1.8 inch LCD display for caller ID, frequency, ect;- Support phonebook function and caller ID voice report;- Stereo Bluetooth(A2DP), play ... , supports USB Drive/SD card, FM transmitter, Folder/Phonebook/Caller ID