The KX-TG6821, featuring a built-in 30-minute answering machine, impresses with its large, white backlit graphic display that offers excellent readability. Particularly smart is the illuminated NR (Smart) button, which blinks when calls are incoming or missed, or when new messages have arrived on the answering machine. The new Smart button makes life a little easier; a single press is enough to answer calls with the hands-free function already activated or to silence the built-in alarm for another five minutes. The integrated extended answering machine provides 30 minutes of recording time. For left phone numbers or addresses, the new rewind and fast forward feature within a message is helpful. The KX-TG6821 can also call a previously saved number when new messages arrive and play the notification. Additionally, the KX-TG6821 features a hands-free function, a wide selection of polyphonic ringtones, and can store up to 120 entries in the phonebook and 50 in the caller list. The new noise reduction can be easily activated during a call using the NR (Noise Reduction) button, filtering out disruptive background noises from the caller's side. Save energy with the Eco mode: the KX-TG6821 is low-radiation and particularly energy-efficient, consuming only 0.8 watts in standby mode.