Waistband amplifier for entertainment with headset mircophone mp3,fm radio,reverberation for ... GSG-YB002 High lights:Multifunction all in one with Entertainment,Microphone, Amplifier, Loudspeaker,Music play and FM radioSupporting TF ... Yoga, Gymnastics,Teaching, Conference,Acoustic Instruments,Camping and other outdoor Entertainment Accessories: Headset Microphone : 1 pcRecharger : 1 pcHost Machine : ...