Dongguan TA-RF Security Electronic Technology Incorporated Co.,Ltd founded in 2002, is professional in developing and producing security products, with over 50 software and hardware engineers. it not only has completely independent technology in 2.4GHZ image platform programme, remote monitoring cell phone cat doorbell, Smart Home doorbell with WiFi function；but also has leading network technology in visual intercom platform for building and terminal platform of intelligent home. Nowadays, the company is divided into two parts: develop programme; produce and sale products. 1, develop programme: mainly including 2.4G digital wireless voice doorbell programme, 2.4G digital wireless voice and image doorbell programme, combining wired buildings with 2.4G digital wireless voice extension phone or 2.4G digital wireless voice image extension phone programme, 2.4G two-way visual intercom programme, 2.4G voice intercom programme, 2.4G one-way visual intercom programme, 2.4G wireless meter