Large numbers and 11 memory dial buttons make dialing a breeze. Simply program all your important numbers into the phone for one-touch dialing. The Ampli500 phone provides maximum amplification that"s customizable to fit your needs. Standard volume control offers a 30dB gain. When the "AMPLI" button is pressed, the phone provides up to 40dB amplification gain. For additional amplification, the handset boost button provides another 10dB, for a total of up to 50dB gain. Features include: Caller ID with large LCD display stores up to 99 incoming names and numbers with date/time stamp for each call.