Wired Siren: This DC 12V Wired alarm horn is compatible with all kinds of alarm host. Constructed from ABS material, fire-retardant, to use 110db Speaker: On-site alarm, loud siren alarm up to 110dB, When someone breaks in illegally, the alarm horn will issue alarm to let you know where the accident happened. Home Security System: When someone breaks in illegally, the alarm horn will keep ringing loud, letting you know where the accident happened. This way you can get to where the accident happened and deal with it as soon as possible. Durable: High sensitivity and stable performance, small and light, long service life. Easy to Install: Flexible and easy to install. Generally installed in the yard or doorway or balcony and other places., Weight: 0.5952481074 Pounds, Manufacturer: Sonew