Shenzhen Yishi Electronic Technology Development Co., Ltd. Is a high technology company in security field. We have a branch company in Taiwan and a modern SMT plant in Mainland China, which has passed ISO9001 certification. Our company specializes in manufacturing and marketing security and safety products, including various types of DVR cards, cameras and standalone DVR products. Our cameras include color cameras, B / W cameras, dome cameras, bullet cameras, integrative cameras, flying disk cameras, and double CCD cameras. In addition, we have developed new products, RF module in wireless communication and telephone recording card / box, which is a new product in surveillance fields. Most of our products are exported to Europe and North America. We will do our best to meet customers' requirements with a positive attitude, so your constant interest and encouragement would be highly appreciated. High quality, sincere service and low price is our value and our promises to our customers. As an enterprise integrated with manufacture and sales, we have confidence to launch more competitive products to cope with severer competition. Yishi is your sincere partner forever.