Bought 3 stick up cams. Only one of the Cams can speak (motion detected at your front door) the other 2 cannot speak but can send a tone. Not Happy! UPDATE...Dec. 2019...Amazon accepted a return of the 2 defective ones and rapidly replaced with new ones. They all work fine and all 3 now speak. The only disappointment so far is the burst of an overexposed image every time motion is detected and recorded, this prevents seeing the object which is causing the motion detection. Also there are long delays when choosing to view live or recorded images.