call bell for tables
which is used for the guess to call for help
order, drink, bill
improve working efficiency

call bell for tables

Feature

YY-A1-WB call bell
which is used for the guess to call for help(order,drink,bill etc)
calls to send the signal to the receiver 

with modern appearance,waterproof 100%
with built-in antenna

Transmission distance:300m in open area

work with the dot matrix wireless receiver of Y-900,Y-910,Y-310B,Y-99P etc

can work with the watch pager of Y-630 or Y-650 directly but dont need another fittings to support.

Technial Parameter:

Working voltage:DC12V
Working current:<15mA
Transmit Frequency:433MHz±75k
Output power:<20mW
size:  Φ60x17mm