Zhengzhou is called the number - Counter pager called the number keypad factory wholesale explain "Function" key: Similar to determine the key, the key used in conjunction with other more "Cancel" button: If an input error, you can press this button in order to re-enter the "Recall" Key: If the called customer failed to appear, you can press this button to make a call "call" button again: common keys for calling customers come for the corresponding business "a noodle" key: with evaluator, "Please next clients to wait outside a noodle, "" Welcome "key: use with the evaluation, the evaluation is sound," Welcome "; used alone, displays a" service for 0001 "," evaluate "button on the window LED screen: evaluation with use evaluation is sound, "Please give me a job evaluation" details: http: //www.sh-laibang.com/chanpin/jiaohaoqi/ LB-115 type pager 6 LCD, 21 key multifunction button. Line audio ports can evaluator. LB-116 type pager 6 LCD, 16-key multi-function button.