Expandable digital cordless phone features Bluetooth connectivity, Dect 6.0 Plus technology, digital answering system and two handsets. Phone is expandable up to six handsets. Dect Plus technology improves transmission quality and extends the range by increasing the frequency of error correction up to 80x. Dect phone is also wireless friendly. Link-to-cell Bluetooth connectivity allows two cell phones to be linked via Bluetooth. Phonebook copy feature transfers 600 entries from a cell phone to the handset. Talking Caller ID uses text-to-speech technology to announce who is calling between rings. Call Block stores the Caller ID info of any unwanted callers into your Call Block list to eliminate their future calls. They'll get a busy signal if they call you again. Other features include 15-minute recording time, Silent Mode to turn the ringer off on only one handset, ringer ID, nonslip handset, three-way conference call capability and dial keypad on base.