TOMTOP Mini Digital Portable Music MP3/4 Player Micro SD/TF USB Disk Speaker FM Radio (Black) Supports micro SD/TF card, USB flash disk, FM radio, etc. With telescopic antenna and earphone output fuction. Supports LINE IN function, receiving audio source from MP3, MP4, PC, Notebook, iPod, iPhone, etc. Build-in high sensitivity FM radio frequency module, the signal is excellent. Build-in high capacity rechargable battery, support long time music playing.