Description: 1. Loud and clear sound.2. Strong and durable, suitable for any weather and season.3. Easy to install.4. Fit for cars, trucks, vans, tractors, motorcycles, or boats. Note: 1. Please double-check product images and fitment information to confirm compatibility before your purchase!2. Please DO NOT use it near schools, residential areas, or hospitals. Package included: 1 x Triple truck air horn & 1 2v Solenoid 1 x 150 PSI air compressor 1 x 0.5 Gallon Air Tank 1 x 240 PSI Air Pressure Gauge 1 x 90-115 PSI Pressure Switch 1 x Horn Button 1 x 1/4" NPT Wing Style Drain Valve 1 x 1/4" NPT Compression Fitting for 1/4" OD Air Line 1 x 1/4" Nylon Plastic Hose (6 Feet) 1 x 1 2mm Thread Sealant Tape (16 Feet) 1 x Mounting Hardware