DUAL ALARM CLOCK: This can set 2 different alarms, convenient for family members with a different schedule. A with enough practical functions for daily use: 5-level adjustable alarm volume, 5-level digits brightness dimmer, built-in USB charging port, SNOOZE function for extra 9 mins sleep, outlet operated with battery backup settings, 12/24H & DST function also available. LARGE DISPLAY WITH ADJUSTABLE VOLUME & DIMMER: with 7.5" LED for vision impaired people, easy to check time from across the room. Alarm volume can be adjusted to 5 levels according to your depth of sleep, louder for heavy sleepers while slight for light sleepers. 5 level adjustable digits brightness dimmer for easy reading, brighter for day while darker for night. NO WORRY BATTERY BACKUP SETTINGS WITH SNOOZE: This is outlet operated for ALL functio