Kensington Orbit Trackball Wired Ergonomic Mouse TK-564M Depth 39mm Weight (with battery):

Depth 39mm Weight (with battery): 75

1x Compatible 62XL High Capacity Black

Keyboard Battery Alkaline battery Keyboard Battery Included 2 AA alkaline batteries Keyboard Battery Life Up to 12 months Mouse Battery Li-ion rechargeable Mouse Battery Included Yes

Key difference between the RollerMouse Red and RollerMouse Red Plus lies in the palm support

Paper Finish: Glossy Paper Weight: 135gsm Total Sheets: 100

Kensington Orbit Trackball Wired Ergonomic Mouse TK-564M Depth 39mm Weight (with battery):Kensington Orbit Trackball Mouse Effortless control and ergonomic design for all day comfort and precision. The Kensington Orbit Trackball Mouse offers superior ergonomics and control, reducing hand and wrist movement for lasting comfort. The centrally located 40mm blue trackball ensures smooth, accurate cursor control. Its ambidextrous design caters to both left and right handed users, while the scroll ring provides seamless navigation through web