Good value for a GPS bike. Easy to use for the device by the mastery against ezTour more ezTour Planner and takes some practice. Ability to retrieve a GPX track and synchronized with GPS. Perfect for amateurs for other even more expensive brands. Unlike other reviews we read, when the device freezes, you do not have to wait for the battery, there is a reset by manipulating buttons: power button + maintain lighting wait 2 seconds and press while always keeping the other two buttons on the joystick middle and there the camera turns off. There is more to relight. Satisfied with the purchase.