1.Vibration sensor alarm,high tone alarm:130dB 2.Ultra Long Standby:2PCS AAA Batteries(include) 3.Low power reminder: when the battery voltage is lower than 3V, the LED indicator will flash to remind 4.Remote notification: When you are not at home, you can also know whether the doors and windows in your home are opened 5.Alarm can works with Tuya,Smart Life,Google Assistant and Amazon Alexa 6.Paste Type,easy installation How to use: 1. Pull out the insulation sheet. 2. Turn the power switch to "on". 3. Press and hold network button for 3 s, Led light is flashing quickly and then enter the distribution state. 4. Vibration sensitivity adjustment: switch upward, sensitivity increased, switch downward, sensitivity decreased. Colour:black / White Material:plastic Size:74 x 13mm Package Contents: 1 * burglar alarm Only the above package content, other products are not included. Note: Light shooting 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.