We designed our infrared to be sturdy, , and useful. Our infrared are made with durable materials so can feel safe that your stuff is secure. It supports multiple installation methods such as flat laying and wall fixing. Features -Color: White. -Material: ABS. -Size: About 9.00X4.40X4.00cm/3.54X1.73X1.57in. -Working voltage: 5V. -Standby current: 20ma. -USB voltage: DC5V. -Alarm current: <=60mA. -Battery: 2 x AAA batteries (not included). -Selection angle: 360° left and right, 120° up and down. - : IEEE 802.11 b 2.4GHZ. -Alarm sound: &gt;80db. -Working temperature: - centigrade~+50 degree centigrade. - Support different installation methods, convenient to use, such as wall fixing or flat laying. - Automatic -theft on time, bid farewell to tedious daily operations, save time and effort. - Use ordinary AAA batteries (not included) and plug use, provide you with a better experience. - Intelligent recognition can prevent false alarms caused by small pets. - APP control multiple mode options. 360° arbitrary rotation, durable and practical. Package list: 1 x Alarm