Specification of Button K-O3:

1.Water-proof

2.work with our receiver to combined the wireless calling system

3.Can be installed on each table,when the customer need help only press the button,the

calling no will be shown on the screen,so everyone can easy to know who is calling.

4.3key button:Call ;Bill;Cancel

Technical Parameter:

Working voltage: DC12V

Working current: ≤35mA

Use Frequency: 315MHz±75k

Transmitted Power: ≤20mW

Transmitted Distance>300m in open area