The wireless calling button adopts the latest RF technology, SAW resonator oscillating technology which makes the products stable and high performance, as well having little affected by temperature changing compared to other products, and with low-power indicator and spill-resistant feature. If the products are poured water on the surfaces, just turn over the transmitter to pour out the water and dry it. It would not affect the using of the transmitter.

Wireless Calling System is a kind of electronic product providing calling service. It uses latest RF technology which includes software and hardware. No need wiring, it is widely used in restaurant, cafe, bar, KTV, club, shop, hospital and so on.