Wireless Door Stop Alarm System No need for complicated wiring, this alarm system can be easily installed without any hassle. 125dB Loud Home Security Anti-Theft Door Block System The alarm system emits a loud sound when triggered, making it an effective deterrent against theft and burglary. Portable Doorstop Preasure Alarm The alarm system can be easily carried around, making it convenient to use in different locations. 2 Pack Get two alarm systems in one pack, providing extra security for your home or office. 2 Pack Wireless Door Stop Alarm System 125dB Loud Home Security Anti-Theft By Block System Portable Doorstop Preasure Alarm Product feature 1. This is an upgrade door stop than others.lt is more durable than others with better quality. 2. 3 Sensitivity Levels - Low - Medium - High, with an adjustable sensitivity switch on the side. 3. Very loud shrill that would definitely scare someone away with 120db alarm. Weight: 128g 4. You can use it as common door stopper when turn down the ON VOFF switch,hold door in open position. 5. No installation required. Requires one 9 volt battery(Not include).Portable and easy way to add piece of mind when traveling or working alone Note: 1.The door alarm is powered by a 9V battery, which can last for one year under normal conditions. The product does not include batteries) 2.If you have any questions about the product, please contact us. Package include 2 * By Strop Alarm When someone opens the door to invade the room, the door stops alarm will sound a 120dB alarm and scare off the intruder, while reminding the owner of the room to pay attention to safety, when the security threat is lifted you can manually turn off the door stoppers alarms and you can set the defense again Technical parameters Color: Silver and black (as shown in the pictures) Material: stainless steel cover Working modes: Vibration sensor Volumn of the alarm: 120 dB Three sensitivity: High, Medium, Low Battery: 1*9V battery Size: 135*45*40mm Net weight: 294g