GBSELL Built-in Battery Touch Senstitive Bluetooth 3.0 Game Wireless Mouse Black Ulltra sensitive touch scroll, allowing you a new experience while using this mouse Fast and stable Bluetooth 3.0 technolgoy; High capacity 750mAh rechargeable built-in lithium battery One-key bluetooth connection; On/off switch; Silky-smooth touch surface System requirements:Windows 2000, Me, XP, Vista, Win 7, Linux, Android, Mac and ISO or higher. If you computer doesnt have built in Bluetooth function. Pls make sure that you have the Bluetooth Dongle. Bluetooth Dongle is not included in this product.