Noah Ark Technology (HK) Limited Co., Ltd. is a prefessional supplier, majoring in the supply of surveillance equipment, such as wireless switch, wireless home security system, wireless baby monitor, wireless IR camera, USB camera, hidden camera and car backing rearview system which are wildly sold in the market and used in our daily life and approved by CE, ROSH etc. Most of our OEM manufacturers have more than thousands of employees. They have the strongest R& D center and most advanced manufacturing facilities, which assure that our products are with the best quality.