Specifications: Voltage: 24V Material : Zinc Tube Noise:150db Max Working Pressure: 150psi Tank Capacity: 3L Pressure Switch Setting: 90psi On, 110psi Off Air Compressor Size:Approx.36*17.5*17.5cm/14.2*6.9*6.9in Four Tube Horn Size:Approx.36 *9 Cm/ 14.2 * 3.5 Inch; 30*9 Cm/ 11.8*3.5 Inch; 23* 9 Cm/ 9.1*3.5 Inch; 16*9 Cm/ 6.3*3.5 Inch Packing Size: 44.5*21*43.5cm Net Weight:4Kg Gross Weight: 4.5Kg Applicable Space:Trucks, Cars, Tractors, Vans，Motorcycles，Boats.