- DuraFon PRO Base Unit - Engenius long range industrial cordless phone system base unit ONLY - Multi-base system (does not include any handsets) - 4 port/line base unit - 2 Way broadcast - Private handset to handset intercom - Scalable and reliable - Range up to 12 floors in a building, 3,000 acres on a ranch, 250,000 sq. ft. in a warehouse - Multiple handsets (up to 90) - Multiple lines(4 ports/lines per base unit) - Expandable to 8 base units - Ability to broadcast to handsets via analog port or line as well as from another PRO or DuraWalkie handset directly - Works behind any analog port of a PBX, phone system or analog phone line - Durable - Will work with DuraWalkie handsets - Optional external antenna for indoor use in warehouses and manufacturing plants or outdoor use on farms and car lots Package Contents: - 1 DuraFon PRO base unit