Engenius Durafon 1x 0210A0011000 (Durafon-1x-N) Expandable Long Range Cordless Phone System. Coverage up to 12 Floors, 250,000 sq ft, or 3,000 Acres. Expandable from 1 to 32 Handsets and 1 to 4 Phone Lines. Includes Digital 2-Way Radio Broadcast and Intercom. New-In-Box Package includes; Base, Handset, Charger, Power Supplies, Battery, Belt Clip, Line Cord and Extended Whip Antenna.