Features: 1. Vibrating Anti-Theft Alarm, More Sensitive, Louder And 2. 10 Levels Of Sensitivity, 110db Volume, And Vibration Perception3. One Machine With Multiple Controls, Long Standby Time, And Low Battery Reminder4. Apply To Scenarios5. Sensing Vibration Alarms To Deter Thieves. Before Intruders Pry Open Doors And , They Can Sense Vibrations And Provide Timely Warnings.Description: Battery Type: Host: 2 x AA Alkaline Batteries (Not Included); Remote Control: 1 27A Alkaline BatteryCommunication Frequency: 433Mhz (LInterference Than 315mhz)Alarm Volume: 110DB (30cm Test)Working Temperature: -10~60CStorage Temperature: -20~70CNote: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseMaterial: ABScolour: BlackPackage Contents: 1 x Host1 x Remote Control2 x -Sided Tape1 x Chinese and English instructionsOnly 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.