*ONLINE ONLY - Allow extra time for delivery. Ship to store FREE! During checkout select ''Store Pick-up'' as your delivery option.* The metal scroll wheel feels solid under your finger, and the shape of the body fits perfectly in your hand. Mouse is designed to have premium precision pointing and clicking for scalable performance across the screen of your Surface and external monitors. Power Requirements: Battery type and quantity: 2 AAA alkaline batteries (included). Battery life: Up to 12 months.