... detective Connect with a mini siren for alarm AVI recording and JPG Features:> Work with alarm system in wireless > PIR detective ... caused stable working > Connect with a mini siren for alarm> AVI recording and JPG snap optional > Overwriting when memory ... -60HZ, DC5V, 1.5ARC distance≤8MIR distance5M-8MIR wavelength850NM Alarm output, Video output, and switcherControl keypad on the backsideSD groove ...