Mice & Trackballs With BT1 + BT 2+2.4G wirele connectivity, the mouse easily connect up to 3 device With this wirele mouse, you can switch freely between multiple computers, extremely convenient. It also has two side buttons which makes the web navigation much easier. To save battery, the mouse automatically goes to sleep after a while of not using it, Just click the button, and it'll come back on 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 wirele bluetooth mouse sleeps to save battery life and wakes with a click. All the products are hale-free 30 days return and refund or replacement and one year Warranty Quiet and Comfortable This wirele bluetooth mouse is ultra compact and lightweight, easy to take around from home to office, very suitable for travel, busine trip, and people with small hands. The compact travel mouse has a curvy body with rubbery layer on it. Comfortable to use it all day. Multi-function 3 Adjustable DPI levels (1000/1600/2400) meet your different needs. And 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). High precision optical engine allows you use the mouse on various surface Note Products with electrical plugs are designed for use in the US. Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing.