Chelong Co.,Ltd located in Shenzhen china, we are glad to follow your case. Our company has been in car electronics for 13 years, and cooperate with many famous brand name in Australia, Russia and Poland.Sincerely hope to have a chance to cooperate with you.In order to enhance our business relationship and your trust on our company,attached a short PPT of us. More information on our web: http://www.chelong.com.c