Features: 300DB Train Horn for Your TruckOur 300DB(2*150DB) Train Horn offers the loudest sound on the market, while also being the most compact Train Horn offered. Dual tone loudlyThe internal reflux design, up to 300DB loudness, gives you a loud voice to warn others, and provides a certain degree of safety for driving. Our 12V snail horn can help you reduce unnecessary injuries. Innovative Design: Our Horn features an extremely powerful directly injected mini-compressor to really charge and amp up the sound! All integrated into one small but powerful device! Broad Compatibility: Train Horn is Suitable For Almost Any Vehicle! While Its the perfect upgrade for trucks, our horn is also fit for SUVs, passenger cars, boats and motorcycles. Waterproof MaterialABS polymer material, strong corrosion resistance,waterproof product,It wont get rusty and circuit short when it is raining. Description: 1.Compact Design. 2.300DB Sound Volume, The Most Powerful on The Market! 3.Loud, Clear and Deep Train-Like Sound. 4.Simple Installation. 5.Complete Water and Weather Resistance. Specification: - Voltage: 12V - Frequency: low 410HZ high 510HZ - Hz Sound level: 300 dB - Power: approx. 48 W Package Included: 2 X 300 DB Super Train Horn For Trucks 2 x Sheet Iron 2 x Screw Hat About FQA Q:Are the product photos real? A:Yes,All the photos displayed are 100% real.and photos are all taken by ourself.But maybe there are some color shading because of monitors. Q:How do I pay for my purchase? A:we accept the following