Logitech Touch Mouse T620 with Full Touch Surface for Windows 8 - Graphite Full touch surface: Swipe, scroll, tap and click with smooth control wherever your fingers rest on the touch surface Designed for Windows 8: Glide through Windows 8 with six intuitive gestures Comfortable shape: Smooth, rounded design for comfortable handling and gesturing Multi-surface tracking: Laser-grade optical sensor delivers precision control on virtually any surface Unifying receiver: One tiny wireless receiver connects up to six compatible mice and keyboards using just one USB port