Description Support an external TF card(Up to 32G), can play music files on MP3/WMA format. Integrate handsfree calls, FM transmitter, Bluetooth, USB charger and MP3 player. Integrated car charger of output 5V/1200MA, is available for charging handheld devices in car. Support Bluetooth hands-free phone calling via its built-in microphone. Built-in microphone allows you to speak to callers without picking up the phone. The 1.44 inches large screen will show incoming call number, , volume, FM frequency and song name if you play music from TF card or USB flash disk. Specifications: Material: plastic. Size: 55*55*70mm. Color: show as pictures. Screen: 1.44". Bluetooth version: V2.1. Input voltage:12-24V. FM Frequency: 87.5-108.0MHZ. Output current: 5V/1200MA. Support TF card(Up to 32G) (not included). Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package include: 1 * FM12B FM Transmitter. 1 * User manual. 1 * Remote Controller. 1 * 3.5mm Cable.