Dear Manager: Our company is an industry leader in the design, development and production of high quality security systems and components.Our products are including DVR card,digital video recorder,video capture card, camera lenses, CCD and some other surveillance system products.Also we supply Kodicom,Pico2000,WDT,Avermedia and OEM service.If these are not interesting you,we can produce products according to your special requirement. You can gain more information from our website. www.yishi.net.cn Hope we can cooperate! Regards!