Features: You can switch the time, date, temperature or display model. There are degrees Celsius or Fahrenheit option and three regular alarm clock and snooze function. This clock supplies four USB charging hubs or three AAA batteries . It is a great assistant with rich functions for you. When you are outside, you can also leave a message on the board to your family. Or you can set at some points of one day to ring automatically happy birthday song. Message board can be support the use of fluorescence pencil writing on the message board, lit the lamp LCD background. And message will appear in the board with beautiful handwriting, even in the night the word and the LED display can be read. Specifications: Material: Plastic + Electronic Components Alarm Clock Color: White Display Screen: LED Screen Power Supply: USB Charging Port/3 x AAA battery (Batteries not included) Backlight Color: Blue Type: Type C(With 4 USB Ports), Type A(Without USB Port) Size: Approx. 14 x 6.5 x 12CM/5.51 x 2.56 x 4.72Inch Highlighter Pen Length: 13CM/5.12Inch Weight: 221G For Type A, 244G For Type C Please Note: Both of Type A and Type C have 2 selections of power supply, one selection is that they all can be powered by 3pcs AAA batteries(not included) (When using a battery for power supply, the fluorescent panel lights out automatically after 10 seconds). The other selection is that they can be powered by USB cable. Type A is equipped with DC 5V power supply interface(Without USB cable). Type C is equipped with 4 USB 2.0 Ports and a USB cable. So for type A, the power cable and the battery should be prepared by customers, for type C, just battery should be prepared by customers. When they are powered by USB cable, the fluorescent panel will always light on. Type C alarm clock can be used as a USB HUB or expander when USB ports are not available. Package Included: 1 x LED Alarm Clock With Message Board (Batteries are not included) 1 x Highlighter 1、You can switch the time, date, temperature or display model. 2、There are degrees Celsius or Fahrenheit option and three regular alarm clock and snooze function. 3、This clock supplies four USB charging hubs or three AAA batteries. 4、It is a great assistant with rich functions for you. When you are outside, you can also leave a message on the board to your family. Or you can set at some points of one day to ring automatically happy birthday song. 5、Message board can be support the use of fluorescence pencil writing on the message board, lit the lamp LCD background. And message will appear in the board with beautiful handwriting, even in the night the word and the LED display can be read.