thodukonics 1000 user wireless Intercom Corded Landline Phone(White)

Now we proudly introducing 900MHz Desktop wireless intercom ISM1600H4 and it compactable with our Mobile Intercom ISM1600H4. Working Range 70m - 400m without any cabling. More powerfull than Our 2.4Ghz Wireless Intercom. And do not require any mobile tower , central exchange , PBX box , central box. But it will simply work as Fully wireless Intercom. Expandable up to 1000 Intercom any time. This Desktop model intercom is compactable with our Mobile Model Intercom ISM1600H3. Battery Backup availabe on Request (Rs250/-) . Ideal for : Hotels,Villas Apartments Door Phone, Apartment flats, School, College, Multistory Building, Lodges, Works site, Hospitals, Banks, Factories, with in Ship, Cruiser, with in Vehicles, Houses, etc. ...Please Note: Price quoted for one Phone. Minimum TWO phone required for working. ? Youtube: https://youtu.be/K2V-gapp7p4