Gotd Wireless Mini Bluetooth 3.0 6D 1600DPI Optical Gaming Mouse Mice Laptop DPI: 800/1200/1600. Button Number: 6D. Working distance: 10M. Bluetooth V3.0. Feature:Ergonomic. Material: ABS. Dimension: about 113mmX72mmX39mm. Buttons: Left, Right, Scroll wheel, DPI button, Forward, Backward. Button lifespan: 8 million times. Connection method: Bluetooth. Battery type: 2 x AAA (not included). OS: W98/W2000/XP/VISTA/Win 7/Mac/Android. It is a wireless Bluetooth mouse that delivers a better mix of precision and comfortwith designed-for-Web scrolling and a feel-good, contoured design.. Ergonomic shape and soft rubber grips conform to your hand and feel naturally comfortable.