USB ALARM CLOCK CHARGES 2 DEVICES AT ONCE! Wake up on time and fully charged with this versatile clock. Two built-in USB ports (3 amp total output) charge phone, tablet or other device as you sleep. Has jumbo LED display with alarm and PM indicators, push-button setup for time/alarm, 8-minute snooze option, display dimmer switch, AC power cord. Battery backup uses one 9V battery (not incl.). 5" W x 2¾" H.