Greenten Portable Wireless Bluetooth Speaker Receive calls, remind you to answer calls when calls coming. With FM radio function. Bluetooth handfree, works with the Bluetooth for wireless communication. Insert the TF card to play music. Built-in TF smart decoder, you can listen to MP3 music stored in TF card. AUX input plug. While work with AUX, it is easily to listen to sound from PC, MP3/MP4