used as mouse pad, play music, 4 port usb hub, stereo speaker,with ... wheel based and optical mouseWith LED light surrounding the whole mouse pad, shining in the darkness, brightening up your computer working ... Mac OS 8.5 or over version Size: approx 24.3cm x 21cm x 2.2cm (9.56" x 8.26 ... x 0.86")Cable length: approx 90cm (35.43")Package included1 X Mouse mat pad 4 ports USB hub Blue LED Mouse Pad Mat 4 ...