3X(Color:As shown< />Rated voltage:12VDC< />Sound index:120dB< />< />material: plastic< />At 120dbs,this siren will not only alert the neighbors of the intrusion,but scare the burglar right out of your house!< />This piercing, plug-in siren can be plugged into your keypad/Console.It works with your system,responding to signals from an alerted Keypad/Console.< />No intruder will hang around when one of these sirens sounds!< />Sound frequency:3.8KH2+10%< />Transmit speed:3H2 increase or discrease 10%< />< />Package Conten:< />1 x siren< />< />Only the above package content, other produc are not included.< />Note: Light ing and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.)