I stored this item after purchasing it and hardly used it. The condition is like new. *Please consider purchasing this item with the understanding that it is a used item. No outer box. Body only (with receiver) Kensington Slimblade Pro Wireless Trackball, 4-button, symmetrical design, 55mm ball, wired connection, 2.4GHz wireless connection, Bluetooth connection, Mac compatible, K72081JP *Due to the nature of trackball mice, unusual noises may occur during scrolling due to dust, but this can be improved with maintenance. Ball cleaning reference video URL https://youtu.be/sSeCt1l2Fag