Panasonics KX-TG6434 handsets use DECT 6.0 on the frequency of 1.9 GHz and this is supposed to minimize interference with other electronic wireless devices. The main base features a caller blocking function that allows the user to program blocked numbers, and the handsets have text-to-speech talking caller ID and alarm clocks as well as battery level indicators.
DECT 6.0
Includes 2 additional handsets (3 total)
Handset intercom
Expandable up to 6 handsets
Caller block list
Talking alarm/battery indicator/caller ID
Silent mode
LCD monochrome display, 2.1" diagonal
4-way conference calling
Handset-to-handset intercom
Built-in digital answering machine
Itemized voice mail
Rechargeable batteries, 5 hour talk time, 11 day standby