The Wireless Trackball Mouse EM01 NL by Protoarc is an ergonomic Bluetooth rollerball mouse designed for use with laptops, personal computers, tablets, smartphones, and desktop computers. It features a modern design with a matte finish in a gray ball color. The trackball mouse has a maximum sensitivity of 1600.0 and requires batteries for operation. It offers a comfortable right-hand orientation and includes 6 buttons for easy use. The mouse is compatible with Windows, Mac OS, and Android operating systems and weighs 0.77 pounds. Ideal for office, business, personal, and home use, this trackball mouse provides a convenient and efficient way to navigate your devices.