Function: 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: Triggers immediate sound and light alarm when the door is opened. The alarm activates even if the door was previously closed. 3. Welcome Mode: Magnetic door sensor emits a "Ding" sound when the door is opened. 4. SOS Mode: Manual emergency alarm activation by pressing the SOS button to trigger sound and light alert. 5. Alarm Mode: Sound and light alarm activates when the door is opened, stops when the door is closed. DDT Model: Theft prevention for valuables Siren Size: 9 x 4.3 x 1.3 cm Remote Control Size: 6 x 3.3 x 1 cm Magnetic Strip Size: 4.5 x 3.3 x 1.3 cm Material: ABS Color: White Package Contents: 1 x Siren 1 x Magnetic Strip 1 x Remote Control 1 x Sticker 2 x AAA Batteries Note: Light reflection and different displays may cause slight color variations between the item in the picture and the actual product. Measurement error allowance is +/- 1-3 cm. Please note: Only the items listed above are included. Other products are not included.