A compact, multi-functional, lightweight and portable speaker! * Supports micro SD/TF card, USB flash disk, FM Radio and LINE IN function. * Clear and loud sound output with 3.5mm?earphone output port. * Supports LINE IN function, receiving audio source from iPhone, iPad, MP3/4, tablet PC, Notebook, iPod, etc. * Build-in high sensitivity FM radio frequency module and antenna, the signal is good.