SecurityMan Inc. (dba. Teklink Security Inc.) is a world wide security product designer and manufacturer dedicated to security industry. Since its founding in 1999 SecurityMan has pioneered an innovative easy-to-install simple-to-operate high-quality and competitively-priced line of video security products such as digital video recorders remote monitoring systems wireless cameras monitors etc. They have made substantial investments in design development and manufacturing resources as they knew the elements are the essentials to succeed competitively. Reliable superb quality and affordable price had to be offered to clients. Teklink Security is proud of being a member of the SIA (Security Industry Association) and a supplier of security products for users property safety-and-security. Ever increasing numbers of people are more security and safety conscious for their family and assets. Their easy-to-install surveillance products will Always watching out for you . Teklink Securitys mission is to provide users with the highest quality and most affordable price which would exceed their expectations and provide an effortless and pleasant interface for the installations to their homes and-or offices. They are achieving their mission through excellence in design manufacturing and service. Do-it-yourself easy to setup and use. Hidden wireless color camera built-in functional wall-clock. No interference from crowded 2.4GHz & 5.8GHz frequencies including Wi-Fi (wireless network) device. Video transmission goes up to 330ft clear line of sight or 100ft indoor. Two-channel receiver supports up to 2 wireless cameras (900MHz).