The receiver use RF wireless and learning code technology. It can pair up to 48 wireless calling buttons. And the receiver host adopts advanced micro processor and high-sensitivity superheterodyne receiving technology which make the products very stable. Also it has adjustable voice prompt, different calling records display, and LED digital display functions.

The wireless calling system has millions of different code which can be paired easily and freely. And it is widely used in restaurant, café, bar, tea shop, KTV, bank, office, factory, hotel, hospital and so on.