Feature

●1.Sound and installation: Easy to install, just install it on an empty compressor for easy installation. The three black speakers with unique appearance, up to 165 decibels of sound, super loud. Small in size but powerful in power, it can adjust the sound of train horns.
●2.Unique appearance, neat and striking arrangement, excellent sound quality and stable frequency. Long service life and reliable and stable working performance. Applicable to any 12V DC electric vehicle (car, truck, SUV, motorcycle, ship, off-road vehicle, bus CUV RV van, etc.).
●3. waterproof horn, shiny black three-tube speaker, reasonable speaker arrangement gives you a different visual experience.
●4.It works in a fresh or salt water environment and ideal for almost any weather condition.tough enough to withstand the any weather and form of elements of blizzard.You can use them anytime, anywhere!
●5. The horn is very loud Please do not use it near school or hospital.If you have any problem with the product, just contact customer service, we will try our best to help you.

[Black three straight]

[Silver four double row]

[Silver four straight]

[Silver three double row]

Description

The positive and negative poles of the power supply are respectively connected
with the two wires on the solenoid valve(no positive or negative points)
The air tap on the solenoid valve is connected to the gas source of the
vehicle(make sure no air leak)
Specifications:
Condition: 100% Brand New
Color: black
Decibel: 165db
Voltage: 12V
three-tube speaker kit
Gift:
5 X high-quality nylon cable ties
1 X power cord 1.5 m.
Features:
4-trumpet air train horn with glistening black finishing
For:Any 12V Vehicles Cars, Trucks, Vans, Buses and Boats
Notes: Professional installation is highly recommended if you have any difficult in installation