100%brand new and high quality Features:1) Wireless， infrared detector， motion-activated2) Accurate identification， 5S owner identification delay alarm3) Long-range multi-channel wireless remote control4) Adjustable mounting unit5) Include 2 direct infrared remote controls; please use it directly facing to the sensorSpecifications:1) Alarm sound level: 105dB (decibels)2) Remote control distance: about 0-5 meters (open land)3) Infrared Detection range: 0-7 meters distance，about 110 degrees4) Working voltage: Direct current 6V5) The motion detector power by 4 AA batteries (not included)6) Size: You can see the details in the pictures7) Color: WhiteInstallation requirements:1) Warning devices on the remote control infrared range of protection should be able to look straight can not have obstacles.2) Install warning devices should be avoided near infrared heat source， such as hot and cold air outlet， air conditioning vent， heater， cooler， etc， to avoid the straight door.3) There should be 10 to 30 degree angle between the wall and remote control infrared warning devices; you can adjust the detection distances according to actual installation angle.4) Warning devices as remote control infrared lens in the human lateral movement relative to the most sensitive infrared detection， and vertical motion sensitivity is poor， so the installation should pay attention to the angle between the horizontal and height detectors， which have great impact protection area.Package includes:1 x Infrared detector2 x Remote controllers1 x Adjustable mounting unit