4 Minute Memory Expansion Kit for AES-2000F and AES-2000S. The ERAM-4M Memory Expansion Kit is designed to expand the voice record memory of the AES-2000 using non-volatile memory. Each kit includes one 28 pin non-volatile memory chip which provides four minutes of record time, equivalent to 75 names. The number of chips required is dependant on the desired number of names. The AES-2000 is factory configured for 75 names, expandable to accommodate up to 525 names. Applications Apartment buildings and Condomiums Senior citizen buildings Assisted care centers Retirement homes Gated communities Features 16 position, 0.5 inch high back-lit display Non-volatile digital voice announcer Factory configured to handle 75 apartments Field expandable to 525 apartments Non-volatile data memory for names, phone numbers and access codes Stainless steel keypad for direct code entry Volume control TTY jack for connection to personal TTY Postal lock input Built in modem for remote programming Available in surface mount or flush mount configurations Keyless entry capability One year warranty Made in the USA,