Shenzhen Taixin Technology Co., Ltd, thank you and your company for choosing our products. We are a large factory in Shenzhen, China. Our R & D, production and sales team is very good. When you receive the goods, any technology and service, please contact us. Thank you again.In many bus/truck factories around the world, auto monitoring wholesalers cooperate with us; our products are trusted by our customers through high-quality performance and service, and we will do a better job in production, service and technology modernization. Thank you.