USB HUB usb gift,4port usb hub 4-port USB HUB with pen holder clock calendar,music alarm,snooze,temperature,countdown timer USB HUB,usb gift,4 port usb hub,4 port USB HUB with ... /alarm clock,countdown timer,music apppreciation 5.With 4-port USB HUB 6.China Patent:2010301144065Power supply: 3*AAAproduce size: 6.4 ...