... ,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 ... TF Card, USB flash disk supported, FM Radio Function*Built-in 2pcs 3.7V/1100mAh Lithium ... high sensitivity microphone*Built MCU Intelligent recharging management system for secure recharge and discharge*Fully charged within ...