Super Loud: 105db;Wireless Alarm: Built in PIR motion sensor,2 remote controls included. Adjustable: 110 degree scanning area,adjustable wall mounting bracket. Power Supply: Alarm powered by 4 x AA batteries,remotes powered by 3 x AG13 button cell batteries (included). Suitable For: doors,sheds,garages and more. Specifications:Standby Current: 100uA;Alarm Current: 150mA;Volume of Siren: 105dB;Infrared Detection Distance: 5 m,110 degrees wide How to use? 1. Turn on the power. 2. A green light will for about 20 seconds. During this period you may move around without triggering the siren. This gives you a to leave the room without triggering the alarm. 3. After 20 seconds,the green light will go out and the unit is in motion detect mode. At this point any motion within 5 m will trigger the siren. triggered,the 105db alarm will blare non-stop for 45-50 seconds and then re-sets itself to motion detect mode. 4. After the siren,you can turn off the power. Installation : 1. Fasten the socket on place 1.4-2 from the ground. 2. Open the battery cover,and install 4 AA batteries. 3. Fasten the motion detector on the socket,angle the motion detector's mounting bracket for a precise aim. the manufacturing model: -105 colour: white Material: ABS Package Contents: 1 * alarm 2 * remote control 1 * base Only the above package content,other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.