Multi-function 4 port USB alarm clock with blue LED back-lit memo board4 USB 2.0 high-speed portsMemo board with blue LED back lightWhen connect to the power converter、 the message board will stay lighting12 or 24 hour format clockDate、 time、 temperature switchable slideshowCelsius and fahrenheit format3 alarm settings and birthday reminderCountdown and timing functionWith four buttons on the bottom、 includes "mode/ setting/ up/ down"Powered by 3 x AAA batteries or USB cable (battery NOT included)Compatible with all USB devicesSize: 102 x 75 x 30 mm / 3.978 x 2.925 x 1.17 inchNet Weight: 144 g / 5.04 ozColor: as shown in the picturePackage Contents: 1 x 4 USB Port HUB Memo Board1 x Nite Writer Pen1 x User Manual