I haven't been able to confirm that it works! It's a very old product! Returns are not accepted even if it doesn't work! Please do not leave a negative review if it doesn't work! Please purchase it with the understanding that you might be lucky if it works! I will not wrap it in bubble wrap because I want to ship it within 3cm thick! (It will exceed 3cm if I wrap it in bubble wrap) No instruction manual Please understand the above before purchasing. Thank you very much.