ITEM NAME:1 Pair Red 12V Loud Auto Truck 110DB Dual-tone Snail Electric Air Horn Universal Descriptio n Description: 1.PVC has good tensile, flexural, compressive and impact resistance, good electrical insulation performance, can be used as low frequency insulation material, and its chemical stability is good. 2.The galvanized metal has a smooth appearance, no zinc, burrs and good corrosion resistance. 3.High power and durable air horn. 4.The sound of the 12V super-sound air horn is not easily overlooked. 5.Easy to install, durable PVC, galvanized metal, super loud. Specification: Product packaging size: 19*10.5*8.5cm net weight:0.393kg Gross weight:0.505kg Voltage:12 volts Frequency: highest:510HZ Minimum: 410HZ Material: PVC + galvanized metal Applicable models: General Products include: 2 x 12 volt air horn Notice: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. Thank you for your kindly understanding. We offer you what you need! 12 Volt Car Truck Motorcycle Driven Red Air Raid Siren Horn Alarm.12 Volt Car Truck Motorcycle Driven Red Air Raid Siren Horn Alarm. The sound of the 12V super-sound air horn is not easily overlooked. High power and durable air horn. Gross weight:0.505kg. 2 x 12 volt air horn.