... ,USB/TF card 4,Mini size,Easy to take 5.FM Radio,MCU system V-5 Audio mini voice portable amplifier with ... USB/TF and FM radio Features*Mini size,easy to take*18W output power, sound can cover 800sq.m*MP3 by TF Card ... , USB flash disk supported, FM Radio Function*Built-in 2pcs 3.7V/1100mAh ...