The Nulea M505 Wireless Ergonomic Trackball Mouse is a sleek and efficient pointing device that offers a comfortable and ergonomic design for extended use. With the option for both Bluetooth and USB connectivity, this mouse ensures a seamless and convenient connection to your devices. Its rechargeable feature provides long-lasting power, while the included charger makes it easy to keep the mouse powered up. The trackball design, roller ball tracking method, and 5 buttons make it a practical and reliable choice for precise and smooth navigation.