Mobile Edge Wireless Folding Optical Mouse Plastic 2.4GHz nano USB receiver with 30 wireless range; quick and precise navigation Ergonomically designed, comfortable to grip and use; compact for convenience and mobility Ambidextrous design - for use with your right or left hand; folds to 60% of its expanded size for when youre on the go Great for laptops or desktop PC's Power-save mode when mouse is folded