We make a new 999 channels keyboard transmitter buttons for kitchen calling. It likes a digital keyboard of the computer keyboard. The user presses 3 digits of 0~9 can combine 999 channels different codes.

In the kitchen, when the chef cooks the dish, he wants to call the waiter to take the dish to the customer's table. And different waiter is responsible for differetn customers. So the chef should call different according to the order. How can he do?

Now, we developped a keyboard wireless calling system. The keyboard has 0~9 digits, the chef can press 3 of the 10 digits to combine 999 different numbers.For example, when he wants to call no. 15 waiter, he just press number 1, 5 and send out the signal.

Each waiter wears a watch receiver, when his number is pressed, the watch will vibrate to prompt him that kitchen is calling him.

In some place, the store or shop provide self-service. Each customer gets a number and find a place to wait. When it is his turn, the server will call his number, but don't know where he is. Maybe the customer cannot hear the call while he is doing something else. Is there anything can help them?

Of course, they can use the wireless calling system.

Such calling system is opposite to normal. The server press the transmitter button, but each customer gets a receiver (of couse, mini one). Then no need long queue.

In such occasion, there is a 0~9 keyboard transmitter, press 3 number of them, you can get from 001 to 999 different numbers. Like press 158, you can call the number 158 customer. The customer gets a mini receiver which labeled 158. When there is a call. The receiver will vibrate, he will go to service center and give back the number receiver.