[Multifunctional Alarm Clock] This clock can set up to three alarms, with time and temperature display functions. Time display: Support 12-hour or 24-hour mode. Temperature Display: Support C/F display of thermometer. You can set for meeting, travel, homework or everyday alarm by your own choice. [Usb or Baery Power Supply] Clock is powered by 3 AAA baeries (no included) or DC 5V/500mA. Do not show time when power is off, but it is still timing normally. [Adjustable Brightness] 3 Levels brightness can be manual selected for this electric digital clock, gentle LED lights will display in the smooth wood surface, even at night you can clearly see the time. [Two Control Mode] Two modes for your choice--Voice-control mode and Always-bright mode. Voice-control mode is recommended when it's powered by baeries. [Modern for Decoration] Safety, environmental and fashionable. The modern makes this portable cube alarm clock be a decoration for your bedroom, home furniture or office.