... Display 4,Mini size,Easy to take 5.FM Radio,MCU system Mini portable voice amplifier with USB/ ... TF and FM radio V-5*Mini size,easy to take*18W output ... m*LED Display:It can display the battery status,radio frequency and music playing information.*MP3 by TF Card, ... USB flash disk supported, FM Radio Function*Built-in 2pcs 3.7V/1100mAh Lithium Battery, ...