This stylish, ultra-thin mouse uses Bluetooth Smart technology to wirelessly connect to your Bluetooth-enabled PC or tablet without tying up a USB port. Its ambidextrous design makes it comfortable to use in either hand and its BlueTrack technology enables accurate tracking on almost any surface. Plus, you can use it for up to six months without having to change the batteries. Compatible with microsoft windows 10 / 8.1 / 8 / rt 8.1 / rt 8 microsoft windows 10 phone macintosh mac os x v10.9x-10.10 android 4.4.4-5.0. Includes mouse. Laser. Optical sensor. BlueTrack. Wireless range 10m. 3 buttons. Programmable buttons. Scroll wheel. 4 way scroll. Battery indicator light. Approximately 6 months battery life. Batteries required 2 x AAA (included) . Manufacturers 2 year guarantee.