Infrared Remote-controlled Sensitive Home/Office Security Alarm with 2*Remotes/Infrared Electronic Watch Dog
Long-distance Multi-channel Wireless Remote Control, two original remote controls.
Alarm + Detector Powered by 4*AA Batteries Needed (Not Included).
Remotes Powered by 3 x AG13 Batteries Each (Included).
Alarm Sound Level: 105dB.
Remote Distance: Above 0-20 Meters.
Detection Range:0-10 Meters.
Please note: Because this alarm have 2 led instruction light,when you put the battery inside,the green light will work,it will take 15 seconds to entry the alarm. After 15 seconds,the red light will be on,so if anybody come in,the alarm will have 105db high frequency siren after 5 seconds.