Lancoon Door Stopper Alarm 2 Pack, 120dB Loud Portable Wedge Entrance Alert Safety Tools for Home Security House Apartment Hotel Travel

• Small & Lightweight: Size 5.3 * 1.8 * 1.4inch(13.5 * 4.5 * 3.5cm) Net weight 4.2oz(120g). Wedge-Shape design to fit any hinged door.
• 120dB Security Alarm: Alarm will be triggered when someone open door, 120dB high-pitched continuous siren will be a great deterrence for any thieves or intruders.
• Easy To Use: 1) Put one 9V battery; 2) Select sensitivity level: M(meddle), L(Low), H(High); 3) Turn ON alarm; 4) Insert alarm under door.
• 3 Levels Sensitivities: With an adjustable sensitivity switch on the side, 3 levels sensitivities are optional, M(meddle), L(Low), H(High).
• Wide Applications: Ideal for bedrooms, apartments, hotels, dorm rooms, door entrance, giving you peace of mind.

How to use it? 1) Put one 9V battery(not included) 2) Select sensitivity level: M(meddle), L(Low), H(High) 3) Turn ON alarm 4) Insert alarm under door Features 1) Home safety guarantee. 2) Stainless steel cover, small size. A wedge-shaped alarm prevents intruders from opening the door. 3) The adjustable sensitivity switch can prevent tampering. Powered by a 9 volt battery (not included). 4) It has three sensitivity levels and super noise. When activated, a continuous 120 dB high tone alarm will sound. 5) Easy to operate, just put it under the door. Specifications Color: Black Material: Plastic+Metal Working modes: Vibration sensor Volume of the alarm: 120 dB Three sensitivity: High, Medium, Low Power supply: 1*9V battery (not included) Size: 14*4.5*4cm/5.51*1.77*1.57in Package Content: 4 x Door Stopper Alarm