How we use the kitchen calling system:

After setting the watch pager and the keypad, they could work together. 

Press any number on the keypad, the watch could receive signal, and show the number, they could be used in kitchens, when the meal is ready, press the keypad, the waiter who wear watches will get the signal, and knows which table meal is ready, then hand the meal to the table directly.

CTK205 Keypad Transmitter Specifications:

CTK205 Keyboard Transmitter Size: 155*110*52mm

Model: CTK205

Keypad Dimension: 152*96*31mm

Decoding: Infrared pair code

Color : Black

Transmission Distance:300-500 meters

Keyboard Type: IP32

Frequency: 433.92mhz

Plug: AU, EU, UK, US standard plug

CTW07 Watch Receiver Specifications:

1).Capacity:500 pcs of pager transmitters

2).Russian,German, Spanish, Ukrainian, English showing

3).Alert Mode:vibration,ring or flash

4).Receive Sensitivity:-110dbm

5).Storage:20 calling numbers(for queuing)

6).power supply mode:250mAh lithium battery

7). Standby Time:7days (in ideal conditions)

8).Frequency:433.92MHZ

9).Compatible with 1, 2, 3, 4, 5 buttons

10).Color:white11).Material:Plastic