?BT1+BT2+2.4G?This is a triple-mode wireless mouse, you can connect up to 3 devices like Windows computer, MacBook and Android tablet at the same time via either Dual Bluetooth or 2.4G mode, and switch between them easily with a click. ?Multi-function Wireless Mouse?3 Adjustable DPI levels (1000/1600/2400) meet your different needs. Easy to change the cursor sensitivity. Two thumb buttons (Back/Forward) allow you move quickly between web pages.(The side buttons will not work on Mac) ?Portable and Ergonomic Design?Ergonomically shaped design, fits comfortably under the hand, clicking and navigating with the mouse is a breeze. Shape and size makes for easy storage and portability. Solid build and lightweight! ?Quiet Wireless Mouse?Silent left and right button reduce 90% noises, help you concentrate on your work, study without disturbing anyone around you. The Wireless bluetooth mouse is very easy to grip and its buttons have a sort of rubbery layer on top. ?Wide Compatibility?Compatible with Windows XP/7/8/10, Mac OS x 10.10, Android 4.3 or later. Fits for Desktop, PC, Macbook, Laptops, Smart Phone and other USB or Bluetooth devices. The wireless bluetooth mouse sleeps to save battery life and wakes with a click.