EnGenius FreeStyl1HC Brand New Includes One Year Warranty, Extreme Range Extra Handset / Charger, Single Line Operation, 25, 000 Square Foot Coverage - 10 Acre Coverage - 6 Floors of Penetration, Caller ID / Call Waiting, Wireless Intercom, Penetrates Concret, Wood & Drywall, Digital Spread Spectrum Security, Built-in Handset Broadcast System, Call Transfer, 4-Line Backlit Display, Call ID Phone Book: 50 Entries, Any Key Answer, Call Hold, Selectable Ring / Vibrate Mode, Adjustable Flash Time, 2.5mm Headset Jack, Key Guard, Selectable Ring Tones, Call Barring, Rapid Charging, EnGenius FreeStyl1HC Handset Will Not Work Without The DuraFon1X Cordless Phone Ideal For: Agriculture / Farming / Nurseries, Hotels And Convention Centers, Multi-Floor Offices, Auto Dealerships And Construction, Schools And Government, Warehouses / Self Storage