About this item Magnetic top cover: Quick-switch aesthetics to match your mood or environment, with two case colors included. Lightweight design: Sleek design that weighs less than 57 g. Quick-release carry strap: Durable finger strap pops out for safe, easy transport Anti Bacterial Protective coating that’s been scientifically shown to inhibit the growth of bacteria by over 99% over a 24-hour period. Near-silent operation: Quiet-click buttons produce less than 20 dB of noise for undisturbed work or study. Exceptional durability: 10-million-click buttons engineered to last more than 3X longer than those of traditional mice. Adjustable DPI: 800, 1000 and 1600 accuracy settings for seamless control across different resolutions.