What's in the box:

Auto Twin Dual Tone Compact Air Loud Horn 12V 150dB Compressor Truck Car Bus Van (Blue)

Ingenious alliterative compound accent steam whistle that electpic snailair horns (power-driven snail air horn) steam whistle is the most unparalleld on the world.

Features:
The elegant design of electric snail air horn (power-driven snail air horn) causee it also can be delicate to mount on the electricity bicycle.
Easy to install, mounting with only one screw.
Ingenious alliterative compound accent steam whistle that electpic snailair horns (power-driven snail air horn) steam whistle is the most unparalleld on the world.
The electron that it merely needs one to regulate a point admittedly and the nuity joins, completely not have to add any pipes, hence the nuit is not only simply but also prompt in using since uniting the equilibrium airflow system, it is issue the high grade noise and guarantee the elegant but forceful height tune immediately.
Its perfectly dependable electrical machinery can stand 100000 successive uses.

Specifications:
Material: ABS
Color: blue
Voltage: 12V
Relay: 12V 40A
Loudness: 150dB
Fundamental frequency: 530HZ
Sound pressure level at 2m.: 115dB(A)
Sound pressure level at 4in.: 139dB(A)
Reliability: 100.000 on/off cycle
Type of sound: harmonized twin tone
Vehicle use: ar, motorcycles, trunks, pick-up, sea vessels, etc.
Size: 150 * 110 * 90mm / 5.9 * 4.3 * 3.5in
Wight: 715g / 1.58lb
Package size: 200 * 115 * 95mm / 7.9 * 4.5 * 3.7in
Package weight: 821g / 1.81lb

Package List:
1 * Air Horn
1 * Screw
1 * Relay