Logitech M310 910-001675 Wireless Mouse (Silver) Full-size wireless mouse in a variety of dreamy new colors and fanciful patterns Contoured shape with soft rubber grips feels good in either hand Plug-and-forget tiny nano-receiver stays in your USB port so your mouse is always ready to use 2.4 GHz wireless connection to your Windows PC or Mac Delivers up to 12 months of power without battery changes