Two-line phone system syncs your smartphone to your home phone and lets you make and receive calls using Outlook. No landline is required for linking up to four smartphones and receiving cells calls with Link2Cell handsets. System includes a corded handset on the base and two cordless handsets with chargers. The base unit features a convenient USB charging port. Because it's Link2Cell, you can answer your cell phone calls on your Panasonic phone handsets without draining your cell phone battery. Clearly hear your client's voice with the high-quality speakerphone and noise reduction. Two-line operation is great for business, home or home office. DECT Plus technology takes the superb sound quality and outstanding range of DECT 6.0 phones to a whole new level. Powerful battery backup system keeps you connected when the power goes out. Phone system also includes 10 one-touch dial buttons and a large LCD.