KERUI C1 Wireless Touch Button Calling System for Restaurant, Senior Centers, Nursing Homes, Schools, Hotel Rooms, Institutions and Residential Buildings and Other Places. 24 Transmitter,1 Display Touch button design, excellent operation experience, Using high brightness large digital tube display, strikingly intuitive. Human voice report, operating with voice prompt, easy to understand, With calendar display, time not lost with power failure or shutdown. Compatible with 999 wireless transmitters, name of transmitter can be edited,in our shop,there are some buttons you can choose,also we can customize the product for you as your needs. Calling and reporting number mode can be set freely, and is suitable in all kinds of occasions, Can match the transmitters of other manufacturers, and key function can be defined freely. Cycle display time can be chosen from 0-999s, Overtime reminder time can be chosen from 0-999s, Auto-delete time can be chosen from 0-999s.