Small folder on operation of remote insufficient on operation. After receiving two remotes was unable to make it work.went on internet read many reviews, there I found out that remote & controller very sensitive to car door remotes and other transceivers. Found out there is default reset by pressing both speed + and - at same time. Remote then reads new code and functions prefect. It would of been helpful if an additional note had been instructions. Other than that snag, nice product with many settings. Spyderpops very quick and helpful to resolve issue.