I have a 2000 B that has only been used in my backyard. All packaging and owners manual with purchase receipt from Cabela's. If you are interested let me know. Thanks Dennis. 2086594713
I bought both and kept the 4000. The 4500 has a compass which I thought was really great until I received the unit and learned it was a MAGNETIC compass. It was a complete joke, because it was affected by the batteries BIG TIME. The instructions call for keeping the batteries in the exact same position, and call for recalibrate any time you change batteries. I like my 4000 a lot.