Generic Remote Controlled Wireless IR Motion Sensor Alarm System for Home Security It ships from China. Usually takes 9-15 days for arrival, sometimes, it would be sooner than this deadline. But, we will not accept returns if this item is damaged during the installation process. Net weight: 175 g, package weight: 20 g. Product Features: You could mount this motion alarm on the wall, keep the distance of 1.5m to 2m between it and the floor. Or mount it on the ceiling, and let it face down to the floor. When the Motion Detector alarms, you can push the Button on the remote controller to disarm/disable it.