The Panasonic KX-TGF544 expandable Digital Enhanced Cordless Telecommunications (DECT) 6.0* Phone system with answering machine and 4 cordless handsets makes everyday calling smarter, quicker and more convenient. Includes one corded handset in the base unit and three additional cordless handsets, expandable up to six handsets (additional handsets sold separately). Hear who’s calling from across the room without having to get up using text-to-speech announcements in English and/or Spanish from the phones’ base unit and portable wireless cordless handsets. Wake kids for school in the morning and let everyone know when dinner is ready in the evening with Panasonic’s exclusive Voice Paging. Voice Paging makes it easy to send clear, simultaneous announcements to every handset in the house, even when family members don’t respond. Included rechargeable backup batteries keep you connected when the power goes out. With a fully charged handset in the base unit, you’ll have power for up to 12 hours talk time and 7 days standby for calls using other cordless handsets in the house. Attach an optional Key Detector to your car key ring or other easily misplaced items and forget about ever losing them ever again. Using any of your telephone handsets, you can activate the Key Detector’s beeping alarm and quickly track down your lost keys. Key Detector’s powerful range finds objects up to 200 yards away so you’ll find whatever’s lost whether it’s upstairs, in your car or in the yard. Easy call block, speakerphone, intercom voice paging, and advanced TAD (Telephone Answering Device) functions tie it all together making this system one of the most reliable and functional cordless phone systems available in the market today. DISCLAIMER: * DECT 6.0 is a North American marketing term for DECT devices manufactured for the United States and Canada operating at 1.9 GHz. Number of Channels: 60 Channels.