Telememo 30: A notebook for 30 phone numbers. World Time: Displays time in 30 cities. Stopwatch and Timer: Accurate to 1/100 of a second. Alarms: 3 daily alarms (one with a "snooze" function). Backlight: LED for the digital display and neon coating on the hands (luminescent). Battery: Up to 10 years of life (CR2025)