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- This system can receiver the signals from long distance, with stable function - Applied with 20 transmitter and can receive 20 calling numbers at the same time - Widely suitable for Hotels, Restaurants, Hospitals, Schools etc. 

- It can be applied with Main Receiver - Easy to connect with Main Receiver - Working Voltage : DC9V ~ 15V 

- Working Voltage : DC12V Working - Current : 15mA - Frequency : 315MHz +/ 75K 

- Supports up to 99 Zone Wireless Calling Button - Calling Indication, Voice Recording, Tone Reminder, Volume Adjustable, Inquire in cycle - 12V DC operated with 150mA Power Consumption 

- Payer unit Comes with two calling function like call & clear etc. - 12V DC/23A Battery Operated - Working Frequency : 315MHz 

- Payer unit Come with three calling function like service, bill, clear etc. - 12V DC/23A Battery Operated - Working Frequency : 315MHz