What's in the box:

External Wired Siren 105 dB Prompt Alert Alarm Dual Tone Indoor Siren for Home Security Alarm System (Standard)

?Features:
*With 105Db squealing alarm sound, this siren will not only alert the neighbors of the intrusion, but scare away the burglar out of your house immediately!
*This piercing, wired connection siren can be connected to your alarm host or console with the 3-wire interface. It works with your alarm system, responding to signals from an alerted alarm host or console.
*When the door sensor, PIR sensor, etc. is triggered, the alarm system receives alarm signal, then the siren alarms loudly.
*2 volume modes, single tone and variable tone adjustable. No intruder will hang around when one of these sirens sounds!
*Direct wiring, easy installation. Novelty design, low power consumption.

Specifications:
Working Voltage: DC 12V
Output Power: 15W
Working Current: 400mA
Siren Volume: 105dB(within 3.0m)
Dual tone: Yes
Voice coil impedance: 8Q
Voice coil diameter: 20mm
Audio: 1200Hz single tone, 800-1200Hz variable tone, 1-second pause
Color: White
Item Size: 10.1*10.1*58mm(L*W*H)
Item Weight: 363g

Package Information:
Package Size: Approach. 11.5 * 11.5 * 6cm / 4.5 * 4.5 * 2.4in
Package Weight: Approach. 394g/13.9oz

Package List:
1 * Wired Siren