Glovion Travel Alarm Clock, Creative Design Folding Table Multifunctional Desk Table Alarm Clock Green Digital clock, alarm clock, calendar,The thermometer. C / F key to toggle Celsius or Fahrenheit temperature Dual power supply.(AAA battery ( Not included)+Solar energy as back energy) The clock can be separated from the base, can be placed in different directions Easy to adjust the time, alarm clock Note: First time using ,Please use 1 pc AAA batteries to activate it and if you put it at sunshine or light, the solar energy is back up power for clock to save the energy