NLC 2.4G Arc Wireless Folding Foldable Optical Mouse with USB Receiver for PC Notebook computer, BLUE 2.4GHz wireless transmission up to 10 meters operating distance Changeable resolution: 500-1000dpi Compatible with PC, Mac, windows XP, and vista and win 7 Fashional arc design,when folded,it is easy to carry RF carrier: 2402-2480MHz