2.4G , operating range up to 10 meter.Mini USB adapter, plug and play, can be stored at the bottom.Come with a power switch for power-saving.6 buttons, for more convenient operations, including left/right button, scroll wheel, DPI button, advance/retreat button.Quick thumb function: with advance button and retreat button, fast forward or backward when browsing the web, forward or backward at the same folder window.Maximum resolution: 1600DPI, and 3-level adjustable DPI DPI, meet your various need.Ergonomic shape, fit snugly under your palm, effectively reducing the fatigue during the intense working. Powered by 2 * AAA batteries (not included).