1.power out:2*50W 2.best for multimedia classroom 3.MP3,CD,PC input 4.CE,FCC,ISO,ROHS ... 5.wooden closure,2.0 two way speaker 2.0 classroom active speaker together with whiteboard and projector strong point:This ... .Sometimes,the delivery time depends on the quantity. 2.0 classroom active speaker together with whiteboard and projector for education