1.4 Ports USB Hub Speaker with Pen Holderprovides you a 3 functions device to use. Connect the USB in with a computer, lighting the blue night light, then slide out the cover from front to back, all the USB hubs appearing. 2.Slide back the cover from back to front to protect the USB hubs when you don't want them to be at work. You can enjoy the stereo music with this USB Hub Speaker Contraotate the pen-holder to separate the penholder from the USB base, then take out of the original picture from the bottom of the penholder, cut the replacing one into the same size as the original one, shape and insert it into the penholder, finally, rotate it deasil to fit in the USB base. 3.USB Hub Speaker with Blue LED Light connects up to 4 ports USB hub at one time Simply connect the Hi-speed USB Hub to any USB port on your computer, then it is ready Colorful cute paper within the transparent cylinder design adds aesthetic eye candy Compact and lightweight -- perfect for notebook or laptop users 4.Backward compatibel with USB 2.0 Hub LED Light Hub with pen holder that you can put more than 10pcs pen in it together. Plug and play, hot swappable Specifications: Size:~8cm(D) x 11cm(H) Weight: 210g Cable length: about 0.8 meter, audio cable 0.6meter Package contents: 1 xMini Pen Holder Hub speaker with 4 USB Ports and Blue LED Light 1 x USB cable 1 x audio cable 1 x manual