The company I purchased it from was fast and quick. The company that is the importer for this device has a lot to learn about manners and how to treat a customer over all.They act like they designed this instead of just importing it from China under their name.I asked to speak to someone in the tech department about some changes to the software that is when I learned they can't do the changes without going thru there Chinese manfacture and paying for any software rewrites.I did notice after the fact that you can find many many more devices like this and over all better. I wouldn't recommend this device to anyone. Save your money and buy a different device from someone else. Trackstick is on the road to the garbage dump.