FULL DIMMABLE DISPLAY - The brightness of the 3.4-inch compact LCD is dial-controlled and adjustable from 0 to 100%, from cast-no-glow at midnight to bright enough that the time can easily be read from across the room during the day. Other features displayed on the screen include: day, 12 or 24hr mode, temperature (°F or °C), status and ringtone for alarm 1 and 2. CUSTOMIZABLE ALARM - Dual alarms with separate weekend/weekday/all-7-day mode satisfy the needs of everyone and every family. You may choose one of the 5 built-in tones (Beep/Piano/Buzzer/Bird/Soft Music) or radio as wake up sound, which gradually increases in volume from gentle to the level you set (options from level 1 to 15). Snooze allows extra 9 minutes of slumber.