HDE 2.4GHz Sports Car Shape Wireless Ergonomic Optical Mouse with Adjustable DPI (Spider Blue) Never stop driving and take all the curves in your home or office with a sleek and sporty Wireless USB sports car mouse Ergonomically designed for comfort and featuring a big block hood top scroll wheel | Adjustable DPI button allows for smooth control Optical tracking technology allows for smoother control than laser mice and works on most surfaces Wireless mouse connects to your computer via USB nano receiver | Conveniently stores in battery compartment great for travel Package Contents: 1x Sports Car Mouse, 1x USB receiver | Requires 2 x AAA batteries (not included)