DUMA WIRELESS INTERCOM 80103-W & 80103-B 

Steps on how to set up Duma Wireless Intercom...
Duma Wireless Intercom is much easier to set up and It can be easily to moved from room to room. It is suitable for Hotel, House, Office & Restaurant. This item can be paired up to 100 Devices with 38 Ringtones and a range of 1000 meters in an open area.