Alarm Clock, Homtim Digital Bedroom Large Display Alarm Clock with Dual Port USB Charger and Temperature,Snooze and 4 LCD Dimming - White [Easy to Set Alarm Clock]: Spin the top rotary button to set the time and alarm when in time setting mode [Dual-USB Port]: Makes it easy to charge your smart phones and other devices while while you sleep or listening to music [Gradual-wake and Snooze]: Fades your alarm in slowly for a gentle wake-up. Snooze functions afford you a few extra minutes of sleep [Large Font Display]: The 3.2 inch LCD large font display has 4 brightness levels easily adjusted by tapping the big button [SureAlarm Battery Backup]: Ensures continued operation in the event of a temporary power outage