Universal 300DB Loud Car Air Horn 12V Trumpet Motorcycle Truck Horn Vehicle Horn Two-color Electric Snail Air Horn -- Description: 100% brand new and high quality Features: The working current of the horn should be above 30A. The horn should be installed away from the engine. Do not be too low to avoid clogging with mud or other debris. Avoid car washing or flooding the speaker in rain or snow. Customers are not allowed to disassemble or adjust the horn components by themselves. When installing two speakers, the connecting wires should be connected in parallel. Hold the horn through them more than 30 seconds. Specification: Product diameter: 90 mm Voltage: 12 V Material: alloy + plastic DB sound level: 150 Frequency: 410HZ 20 low frequency 510HZ 20 high frequency Scope of application: 12V cars, motorcycles, battery cars, etc. Package includes: 1x snail horn1x iron sheet 1x screws