Mini Travel Bluetooth Laser Mouse with Precision Control & Cordless Design ( Black ) for Sony VAIO E , T , C , CS , F , S , Y , Z Series & More Bluetooth Enabled Laptops! This wireless mouse is compact , portable , and convenient for every day Desktop Computer , Laptop , Netbook , & Ultrabook and Gaming use. Wireless Bluetooth signal works up to 30 ft away 800 DPI optical laser for smooth, precision movement 250% more accurate than standard optical mice Battery conservation mode with low battery LED indicator