Not a stable security system on wireless... It decides itself when it wants to record or not to record when motion is detected. Sad to say just unstable. Okay for home security camera but definitely not for commercial use with guarantee of recording everything. Company needs to improve a lot on their motion detection and application. Hope they will improve it real soon but seems like most likely not since I had it for more than 3 years going on with these issues. I have 4x cam expensive $$$$