- ClearSounds A400 bundle - base unit plus extra handset - Up to 40 dB adjustable amplification - Adjustable tone control clarifies sound, making words easy to understand - Full duplex speakerphone in handset with adjustable amplification - 6-level ringer volume control and 10 ring tones - Bright visual ringer - Talking Caller ID, keypad, and ringtone - Big button easy-to-read high contrast keypad - 30 Name/Number Caller ID - DECT 6.0 System expandable up to 5 handsets total - 4 one-touch memory dial buttons - 200 name and number phonebook directory