everyone on the property must be registered. if you are short listed you will then be invited for interview. it can be used to sense very small objects through a large portion of target. thank you ladies for your support. i am always up for the challenge and said yes. the tilt function is great if positioned above seated eye level. i know that i always did my very best in my helping others and planted many seeds of love which maybe one day will be discovered. finally, comments can be blown out of proportion, listen to how that can happen. 