Small footprint but jumbo 1.2" time display. The brilliant Red LED display is visible under all lighting conditions. The oversized numbers are easy to see from any point in the room! Features include loud alarm and snooze duration of 8 minutes. Corded electric alarm clock works with most USB-A ports (built-in to some vehicles) to use on-the-go traveling by car, truck or RV. Power brick not included. Includes 5V/USB power adapter. Optional 2 AAA alkaline batteries keeps time/alarm settings (not included) in case of power outages.