Dual USB Car Wireless MP3 Audio Player Hands-Free Calls 88.1-107.9MHz FM31 Transmitter

Compatible with Bluetooth for hands-free calls, convenient to use and keep your driving safe.

5V / 2.1A dual USB charging, it can charge 2 phones or pads or other USB devices simultaneously.

You can play music on your phone via bluetooth or insert a U disk.

File formats supported are MP3 and WMA, easy to match the universal music formats.

Universal 12 to 24 V DC plug is designed for power ports of car.