This is a cool land-line phone system.  It can connect to a land line, and two different cell phones as a Bluetooth device, so when you get a call on your cell, all the phones will ring and you can answer your cell call from your landline phone.  This works great for older folks that don't always carry their cell around the house or who struggle to hear their cell ringing.

Comes with the base unit/charger/answering machine (KX-TG7641), three handsets (KX-TGA660), and two additional charging bases (PNLC1017).

The batteries appear to work, but I make no guarantees about their health or longevity.

Here's what eBay's robot has to say about it:

This Panasonic cordless phone bundle includes three handsets and a base station for easy communication throughout your home or office. With its sleek design and advanced features, this phone is perfect for busy individuals who need reliable communication.

Whether you're making calls or sending messages, the KX-TG7641 model offers crystal-clear sound quality and intuitive controls. It's also compatible with various accessories, such as headsets and belt clips, for added convenience. Get ready to experience a whole new level of communication with this high-quality cordless phone bundle.