?Here I will recommend you a high quality vibration alarm. It provides a reliable and cost-effective solution. This vibration alarm is compact and attractively designed to meet the needs of residential installations. It is programmed to withstand all possible interferences which are inherent in a residential environment£¬ yet provides excellent performance in intruder detection. It can ensure your personal and property safety. You can have sweet dreams at night with this device.                                    Features             New and high quality<br> Easy to install and operate<br> Long using life<br> Stable performance and low power consumption<br> Vibration alarm is easily mounted to windows or doors<br> This product is suitable for any place that needs of security£¬ Including: warehouses£¬ shopping malls£¬ homes£¬ factories etc. <br>                                                            Specifications            Working Voltage    DC 9V£¬ the use of a GF22 Battery    <br>Alarm Mode    full micro-vibration is triggered    <br>Alarm Volume    ¡Ü120DB    <br>Remote Control    ¡Ü20m    <br>The Alarm Time    ¡Ü40s    <br>Dimensions    3.50" x 2.17" x 0.98" / 8.9 x 5.5 x 2.5 cm(L x W x H)    <br>Weight    107 g / 3.77 oz    <br>                                                            Package Includes            1 x Remote Control Vibration Alarm<br>1 x Remote Control<br>