The features of the ball jet diffuser FK-QP are long-distance air supply with less noise, which are mainly used in the superior places where hot/cold air supply is required. The outlets can be regulated by hand or electric devices to meet the change of the temperature. The maximum up or down adjustment angle of the outlets is 30 degrees. The product with manual adjustment can be regulated 360 degrees. There is a ball jet diffuser in the exhaust hook of the outlet QP together with a draught ring and connecting pipe, which can be installed in the round duct. The style with automatic temperature control can automatically adjust the air supplying temperature and angle without manual adjustment when season changes.