... fm radio,microphone yoga speakers waistband portable mini amplifier speaker Item Name: GSG-100 Specification:Multifunction all ... in one with Entertainment,Microphone, Amplifier, Loudspeaker,Music play and FM radioSupporting TF Card ... working timeKeep working in 7-8 hoursFunctionMp3, FM radio, Amplifier, Line-in, loudspeaker, microphone, reverberationColor ChoiceLight greenWeight0. ...