Coollife 1pc Portable Bluetooth 3.0 Wireless Mouse Mice for Win7/XP/Vista Android 3.1/Tablets Powered by two AAA batteries (Not included) Lightweight design is ideal for travel. Fits for all the devices which has the bluetooth functions. Please note: In order to sync the mouse with your Bluetooth device, simply hold the left, right, and scroll buttons at the same time for 15 seconds or until your device senses the mouse Using bluetooth technology, 10 meters distance usage.