The ProtoArc EM01 NL Red Ball Wireless Trackball Mouse is a high-quality, rechargeable mouse with thumb control. It features an optical tracking method and a maximum DPI of 1600. The mouse has 6 buttons, Bluetooth connectivity, and comes in a sleek red color. With an ergonomic design and a 1-month manufacturer warranty, this trackball mouse offers a comfortable and precise user experience. The rechargeable feature and included charger make it convenient for extended use without the need to constantly recharge. Overall, the ProtoArc EM01 NL mouse is a reliable and stylish option for those looking for a unique and efficient trackball mouse.