In the remote controller is not working on arrival: no luck? The problem is that it comes from South Korea and Amazon do not accept returns of hazardous products ... So a refund is made in case of malfunctions which is very good from the site. But this means that you end up without the tool that you count ... You have to look for another ... From the time lost and this can be a real problem ... So, pay attention to order early enough does not end up without remote control when the time comes!