uxcell a16011200ux0041 Motorcycle Siren Horn Product Name: Motorcycle Siren Horn; Material: Plastic, Chromed Metal Package Content: 1 x Motorcycle Siren Horn; Color: Black Brand: Aftermarket for Toyota; Dimension: 10 x 9 x 8.5cm/ 4 x 3.5 x 3.3 inches(L*W*H) Rated Voltage: DC 12 V; High Horn: 510Hz Mounted Hole Diameter: 8mm/ 0.31 inches