... with fm radio with headset mircophone mp3,fm radio,reverberation for sound Used for entertainment, teching Item Name: Outdoor amplifier with fm ... Keep working in 7-8 hours Function Mp3, FM radio, Amplifier, loudspeaker, microphone, reverberationColor ChoiceBlack,Red ... for Yoga, Gymnastics,Teaching, Conference,Acoustic Instruments,Camping and other outdoor Entertainment Accessories: Headset Microphone ...