Feature
1. Used for transmitting table numbers to receiver. If guests need service, just push the "call" key, then the waiter can receive the request messages.you can put the call button on the client table/wall.
2. It is used in banks, dining hall, coffee bar, bar, teahouse, leisure club, GYM, KTV, chess and card room, Internet bar, hotel, nursing home, sanatorium, hospitals, library etc.

Specification
1.100 % Water-proof
2.work with our receiver to combined the wireless calling system
3.Can be installed on each table by double side tape or screw
4.3-key button:Call; Bill; Cancel
5.Color: White, grey, black, yellow, blue

Technical Parameter
Use Frequency: 433.92mhz
Transmitted Power: ≤20mW
The button work with 12V 23A battery
Transmitted Distance: >300m in open area
Size : 60 x 60 x 3 mm