GPS 4410 Wireless Bluetooth GPS Receiver - High Precision Navigation for Hiking, Cycling & Outdoor Adventures | Compatible with Smartphones & Tablets

After 2 days of this, I am returning it.What I liked:- Nice 3D nav screen- the use of AAA batteries and long continuous use.- fast re-routing.What didn't work:- map info was INACCURATE for even the metro Boston area!!! The first locations i tried, my home, work, and friend's house, it was off by blocks, and even no info on the street at all! There is no way for user to edit and correct the map data!- You cannot set your own route by selecting way points like a Garmin. You are left to the mercy of the software's choice and you can't plan multi-stop trips either.- You cannot adjust the speed assumptions of classes or road. it keeps wanting me to go out of way to a "highway" when it would have been a straight shot to work via local street. And you can't do anything about it!- Bluetooth drops out every few minutes even just 2 feet from my iPaq 2210. Annoying at best. Really not usable. And this 4410 had supposedly one of the better bluetooth signal strength!