Need an outlet within bedside reach The SHARP Digital Alarm Clock with Power Outlets & 2 AMP USB Charge Port offers two outlets and one 2 AMP USB charge port to charge your smartphone or other USB compatible device. Conveniently power low wattage items like digital cameras, additional phones, fans, lamps and more Want to adjust the displays brightness Press the snooze/dimmer to switch between three levels of brightness. The USB charge port provides 2000mA recharging current. Devices requiring more than 2000mA should not be used. Charging time may vary for different devices. This clock is electric operated; the battery backup does not power the clock. The battery backup is used for storing the time and alarm settings if the power is interrupted. During battery backup the clock's display will not be lit. Once the power is restored the display will re-light. Check the time to make sure it is accurate and adjust if necessary. Product Dimensions: 7.5 x 3 x 2.9