The LED digital alarm clock made of wood,It contains calendar and voice control.Voice control function can be controlled by switch.Time,date and temperature displayed can be shift automatically.After backup battery is put inside,the clock will be still working when powered off.The bulk products are not including battery.Voice control.Listed prices are for red LED numbers.Those numbers could be green, blue and white,and prices are different for each color of numbers.Logo could be printed above or below the numbers.