digital dual alarm clock for bedroom, usb charging port, 0-100% display brightness dimmer, 7 color night light , adjustable volume, snooze, simple operation led alarm clock for kids, teens, black zeithalter we are committed to providing exquisite design.when designing, we considered the various scenarios while using it, to make it more stable and more convenient, we design battery backup , it's more power-saving, and more reliable. <br>what's most important, it's easy to operate by kids, teenagers, even the old . <br> <br><b>it can be used in bedrooms, living room or office, great for kids men and women and so on. it’s a good option for present.</b> <br> <br>with 100%-0% completely adjustable display brightness for comfortable viewing,especially for those with poor eyesight . <br> <br><b>plug in alarm clock with usb charging ports</b> <br> <br>plug in ac outlet ( 100-240 v ) with the included certified dc adapter to power on the clock. 2*aaa battery needed for storage the settings in case of power interrupt. <br> <br><b>high speed usb port for quick charging your smart cellphone</b> <br> <br>battery backup <br> <br>backup battery to save your clock and alarm setting in case of power failure, ensuring that the time is always accurate, and the alarms will sound at the preset time.2* aaa battery ( not included ) backup needed for storage the settings. pls note that batteries are not included. <br> <br>use the usb charging port to power your phone or another device without taking up unnecessary space on the outlet. <br><br>the padded bottom keeps the alarm from sliding while hitting the snooze button. <br> <br> to power the bedside clock, plug the power cord into a standard us 120v outlet. <br>two backup aaa batteries(not included) preserves time and alarm settings in case of power outage. <br>during the backup battery, the screen will go blank, but the alarm will still go on. <br> <br><b>100% guarantee:45-days money back </b> <br> <br><b>18 months warranty</b> <br> <br>we offer 18-months warranty for every customer.<br> <br> we will take responsible for any problems during the period and give our customers best after-sales support.