Photo 1 of ***missing battery cover***Kensington Orbit Wireless Trackball with Scroll Ring - Black-Red (K70990WW),***missing battery cover***

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Photo 1 of ***missing battery cover***Kensington Orbit Wireless Trackball with Scroll Ring - Black-Red (K70990WW),***missing battery cover***Photo 2 of ***missing battery cover***Kensington Orbit Wireless Trackball with Scroll Ring - Black-Red (K70990WW),***missing battery cover***Photo 3 of ***missing battery cover***Kensington Orbit Wireless Trackball with Scroll Ring - Black-Red (K70990WW),***missing battery cover***