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<br><br>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 Material:plastic Size:74 x 13mm<br><br>Package Contents: 1 * burglar alarm