?Programmable & Wide Compatibility? Intelligent macro defines function allows you to customize 7 buttons. Via attached software(please refer to manual), build your own professional mouse. Compatible with Windows 8/7/10/Vista/XP/2000, Mac OS X(over V10.4), Linux etc. (NOTE: Programmable function, forward and backward buttons are not recognized on Mac). ?Ergonomic Vertical Mouse? Scientific ergonomic design provide better support and more comfort for your hands and reduces the torsion of the forearm and wrist caused when using traditional mice. ?Multifunction And Rechargeable? Advanced "Page Back" and "Page Forward" functionality buttons positioned where the thumb rests increase web browsing convenience for internet surfers, gamers and people who work at length at the computer. Built-in rechargeable battery. You no longer need to buy batteries. ?5 Adjustable DPI? Switch between 800/1200/1600/2000/2400 DPI to adjust mouse responsiveness depending on your need or preference. Optical Tracking Technology ensures greater sensitivity for precise tracking on a wide range of surfaces. ?Wireless Connection Support 3 Device? Upgrade Tri-mode wireless mouse (BT 5.0/3.0+2.4Ghz). It can connect 2 device through BT, and 1 device through 2.4GHz USB Receiver, freely switches between 3 devices with 1 mouse. Note: You can't control three devices at the same time.