Model No.: MU-W-14 Product Features: 2.4GHz Wireless Optcal Mouse 1600dpi 0-10 Meter working range Work with 1 x AAA battery USB Nano Dongle Material: Plastic Systems Requirements: Window 8/7/ Vista/XP/2000/ME and Mac Colors: Black,Grey,Red,Green Dimension: 100 x 60 x 36mm MOQ: 100pcs