HITO 8.7" Digital LED Alarm Clock Large Display for Elderly Vision Impaired, Adjustable Volume USB Charging Port Adapter Included USB Charging Station for iPhone, Smartphone, MP3, for Bedroom, Bedside Clock size: 8.7x 4.1x 2.2 inch, Time size: 3.0x1.6 inch(Civilian time Only). hito LED alarm clock with jumbo display features 3 high time size, very easy to read from across the room for retired seniors, elderly, vision impaired people. hito extra large LED clock is also extremely easy to use. And yes, Hi-low adjustable alarm sound with snooze repeats every 8 minutes. All these features make it ideal present for grandparents, elderly friends and heavy sleepers. Unlike most LED clocks, hito jumbo LED clock large display is really clear but doesn't gives off blinding light at night. It's totally comfortable to use at night. Two USB charging ports: one to power the clock itself, the other USB Charging Port to charge phone, tablets, MP3 or other smart devices. hito digital LED alarm clock comes with USB charger Included. You can use it upon its arrival. hito digital alarm clock is AC 120V electric powered with battery backup. Just plug the power cord into a standard US 120V outlet. Insert two AAA batteries for back up in case of a power cut. During battery back up the screen goes blank but alarm and time settings are retained and the alarm will still go off.