This company has gone above and beyond to assist me in getting my product safely to my country. When it seemed as though the shipment was late Sophia contacted the courier company immediately and informed me as to the delivery date. The quality of the item is great and all wires and components were intact. The design of the system is very good and reflects a certain amount of professionalism and pride. Customer service has been second to none. I have dealt with many companies from around the world, but the service I have received from Zhengzhou Jianhe Electronic Technology Co., Ltd is simply FANTASTIC. The lady Sophia was very helpful, and up to the time of this review, she has been invaluable, and I'm very glad and lucky to have such a good customer representative working with me.