... Radio 5.MCU system Professional Multifunction 18W Portable Voice Amplifier With Headset Microphone V-8Features*18W output ... battery)*Dimension:126*92*42mm Packing Include*Amplifier body x 1set*Charger adaptor x 1set* ... belt x 1pc Applications Teaching, Tour guiding, Morning exercise, Training, Sports, Speech,Publication,Outdoor entertainment 2012 Professional Multifunction 18W Portable Voice Amplifier ...