... power: 12 W, clear and nice loud voice, good penetration.Aluminium magnesium alloy material, professional ... Mp3, FM radio, Amplifier, Line-in, loudspeaker, microphone, reverberationColor ChoiceBlackWeight 0.5kg ( including battery )Size128* ... Teaching, Conference,Acoustic Instruments,Camping and other outdoor EntertainmentAccessories:Headset Microphone : 1 pcRecharger : 1 pcHost Machine : 1 pcWaistband ...