Shenzhen Telifeng Communication Co., Ltd. specializes in the innovative use of technology to produce electronic educational products.

Our "OID talking pens" and "OID teacher's pointers" are the first of their kind in the world to use "invisible" OID code (Optic Identification/Optic Index pen of monomer) technology in their production. Such all-in-one gadgets vocalize written materials when their tips are moved near the text. These two lines of products have already obtained the State Intellectual Property Bureau's patent in their new practical use. Within such series, the HB-69, and HB-79 models have also obtained the design patent on their appearance as well. Because of their unique point-to-read user-friendly feature and aesthetic design, they have drawn the market's attention since launched.

As for the teaching material itself, we have been working closely with our trading partners at home and abroad, and the educational departments and publishers, in the development, publish and production of 8 series of 120 volumes of English textbooks and 350 volumes of other books are encrypted with OID codes. It is the first of its kind anywhere in the world that puts such technology into domestic use in such a scale. Over the years, we have accumulated extensive experience in many aspects of this industry, i.e. design and production of different kinds of OID pens, production of OID-equipped books, audio compression, and market research. Our products sell well not only at home, but also abroad, including the USA, Russia, South Korea, Singapore, Indonesia and Malaysia.

Please feel free to contact us for further information.