eBoTrade Digital Alarm Clock 4 USB Clock Message Board Memo Board and Highlighter/alarm Clock Blue You can switch the time, date, temperature or display model. It supplies four USB charging hubs or three AAA batteries,it's up to you. It is a great assitant with rich functions for you,also can be a great gift. Used as message board,you can write any words on the board what you like. As a digital alarm clock, it have three regular alarm clock and snooze function.