1. some blind spot. Motivation on some spot can not be active sensor with the same distance. 2. Making record delay. After sensor active by some moving around 4~5 seconds, the camera start to record. so sometime the camera can not catch the move stuff,because when the camera start to record, the move stuff has move out of the range of camera, so catch nothing in the.record. 3.can not choose record all the time. 4.if record long time, battery will drop so fast. 5. Solar panel charging too slow. 3 cloudy days on the roll, so battery drop to 0. 6. night time the view quality not good. I saw a cat ran from the record, just like a ghost cat.