15W DC 12V Wired Alarm Siren Horn 

Operating Voltage: 6 to 13V DC (Power Adapter NOT ) .

Working Current:320mA12V DC

Bracket: Iron.

Color: Black

Dimensions(L x D):106 x 102mm.

Red Wire (Anode),Black Wire(cathode).

Decibel Level:120dB12VDC, low voltage would be low Db.

Material:ABS flame retardant material shell, metal base,low power , high-decibel, simple wiring.

DC6 to 13V 120dB Alarm Siren
1 Tone Electronic Alarm Siren Provides Loud Sound.
ABS shell, metal bracket, simple wiring.
Dimensions(L x D): 106 x 102mm(4"x4.2")
It's great for DIY System or ,It's simple to hook up