Shenzhen Yishi Electronic Technology Development Co., Ltd. is a high technology company in security and wireless products field. We have a branch company in Taiwan area and a modern SMT plant in Mainland China, which has passed ISO9001 certification. Security and safety products, including various types of Standalone DVR, CCD Cameras, IP cameras, NVR and Telephone recording products. DWireless products includes Data Radio, FSK RF modules, ASK transmitter and receivers in wireless communication.As a manufacturer, our price is very competitive. 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.