Description 1,Light Alert:The LED light blinks once when the remote control button is pressed, and keeps blinking when the alarm is triggered.2,anti-theft mode:Open the door immediately sound and light alarm for even if the door is closed in advance, the alarm will sound for .3,Welcome Mode: Door Magnetic Ding when opening the door4,SOS mode: encounter danger manual alarm press emergency key (S0S) sound and light alarm DDT model: theft prevention of valuablesAlarm mode: open door alarm, close door stop alarmColour:WhiteMaterial:ABSSize:Siren: 9 x 4.3 x 1.3cm; Magnetic Stripe: 4.5 x 3.3 x 1.3cm; Remote: 6 x 3.3 x 1cmPackage Contents:1 x siren1 x magnetic strip2 x remote control1 x sticker2 x AAA batteriesOnly the above package content, other products are not included.Note: Light reflection 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.