Microsoft CZV-00005 Arc Wireless Mouse - Light Grey Interface Bluetooth® 4.1 Wireless frequency 2.4GHz frequency range Buttons 2 buttons, right and left click Design Bendable tail Scrolling Full scroll plane, horizontal and vertical scrolling Compatibility Windows 10 / 8.1 / 8 Host must support Bluetooth® 4.0 or higher. (Note: many Apple and Windows 7 devices do not support Bluetooth 4.0.) Weight 2.91 ounces (82.49 grams) including batteries; battery weight may vary Battery 2 AAA alkaline batteries (included) Battery life Up to 6 months Available Colors Burgundy, Light Gray, Cobalt Blue and new Limited Edition Aqua1 Warranty 1 year limited hardware warranty Dimensions 5.17" x 2.17" x 0.56" (131 mm x 55 mm x 14 mm) Wireless range 32.8 feet (10 meters) in open area and 16.4 feet (5 meters) in office environment Technology details Mouse tracking system_ Microsoft BlueTrack Technology Imaging rate_ Dynamically adaptable to 1200 frames per second X-Y resolution_ 1000 points per inch (39.4 points per millimeter) Tracking speed_ Up to 30 inches (762 millimeters) per second Product feature performance Mouse button features_ 2 buttons, left and right click Design features_ Bendable tail Scrolling features_ Full scroll plane, horizontal and vertical scrolling