Description :
 
 KERUI C1 Wireless Touch Calling Button Call System for Restaurant Bank Match up to 999 transmitters

  

 Features :

 
 Match up to 999 transmitters.
 Match up to 20 remote managers which acn have overall management in the host.
 Can inquiry the latest 20 calling info.
 One audio output, can connect the headphone or amplifier.
 Compatible with full range of 1527 (Resistor 150K-470K) and 2262.
  

 Specification :

 
 Work Voltage: DC5V 1A
 Frequency: 433MHz
 Work Currents: <350mA
 Standby Currents: <100mA
 Receiving Distance: About 20m (Open area)
 Environmental Temperature: -20\u2103 to 55\u2103
 Size: 197 x 108 x 23mm 
  

 Package includeds :

 
 1 x KERUI C1 Calling Button
 1 x Power Supply (EU \/ UK \/ AU \/ US Plug for Optional~)
 1 x English User Manual
  

 Details pictures :