Door Stopper Alarm Security Portable Door Wedge Stop Door Jammer Security Devices Alarms for Home Travel Apartment or Dorm Office Safety Tools Door Stop with 3 levels alarm 2 Pack Black

They might pick your lock but they cannot get inside your hotel room, apartment, or home when secured by the Super Stop Alarm. Battery Installation: Make sure the on/off switch is in the "off" position. Turn the unit upside down and open the battery compartment Install one 9-volt battery (not included) and close the compartment. The on/off switch will prevent the unit from accidentally sounding. Specifications: Color: Silver and black (as shown in the pictures). Material: Stainless steel cover/Plastic body/Damping rubber bottom. Working modes: Vibration sensor. Volunm of the alarm: 120db. Three sensitivity: High, Medium, Low. Battery: 1*9V battery. Size: 5.9*2.36*1.77inch. Net weight: 0.24Ib. Note: Powered by one 9-volt battery( Not Included).