The Logitech Optical Mouse TRB22 is a trackball mouse designed for wireless connectivity via a USB dongle. With an optical tracking method, this mouse offers precise cursor movement and has eight buttons for easy navigation. The sleek black color and compact design make it a versatile and convenient option for users looking for a comfortable and efficient pointing device for their computers or laptops. Although not tested, this Logitech mouse is in good physical condition and still within the manufacturer warranty period, making it a reliable choice for everyday use. ( NOT Tested)