The Orbit Optical Trackball from Kensington offers users an ambidextrous alternative to traditional mice which require a constant grip to be used and a larger amount of space on the desktop. A 40 mm trackball with optical tracking for accuracy is centrally positioned for ease of movement by the fingers. Left and Right buttons are located adjacent to the ball, with the thumb and pinkie fingers naturally dropping into position over them. The Orbit Optical Trackball is sized to best fit the needs of small to average sized hands. Users with larger hands may wish to consider one of the larger trackball options.

Note: Users who perform large amounts of scrolling need to be aware that the Orbit Optical Trackball does NOT have a mechanism to perform vertical scrolling. These users should consider a trackball which includes a dedicated scroll wheel or ring such as the Orbit Optical Trackball with Scroll Ring.

The Orbit Fusion Wireless Trackball from Kensington features a contoured body that supports the hand in a naturally relaxed position, rotated outwards at approximately 40°. The large 40 mm trackball provides silky-smooth and virtually effortless cursor control and is positioned so that multiple fingers can share the workload. Three DPI settings are available, a fixed 400 DPI for fine control and two dynamic ranges of 400-800 and 800-1500 DPI that respond to the rate of the trackball rotation to provide both speed and control. Speed adjustment is achieved via the thumb switch. A convenient patented light-action detent-free scroll ring around the base of the trackball gives quick access to scrolling and for viewing lengthy documents a quick press of the thumb on the middle-click button converts the trackball to scroll function. On the thumb side are conveniently-placed Left Click, Middle Click, Back and Forward, and DPI buttons. A large right-click button is positioned to the right of the trackball for access by the ring finger.

Since the Orbit Fusion connects wirelessly and can be placed on any surface - even soft or uneven ones, this a great mousing option when working on a Smart TV. The 2.4 GHz wireless receiver connects via USB-A or USB-C (using the included adapter) for laptops or devices that do not include full-size USB ports. Basic functions are available plug-and-play but can also be customized using the KensingtonWorks software (Windows and Mac)

Those who in the past may have used the Microsoft Explorer or Logitech TrackMan Marble FX trackballs may find the Orbit Fusion Wireless Trackball to offer a degree of similarity to these discontinued devices. The overall angle, hand placement and finger control are similar and are now combined with improved overall function and performance.

The Orbit Trackball with Scroll Ring from Kensington is an ambidextrous alternative to traditional mice which require a constant grip to be used and a larger amount of space on the desktop. The 40 mm trackball features optical tracking for accuracy and is centrally positioned for ease of movement by the fingers. Left and Right buttons are located adjacent to the ball, with the thumb and pinkie fingers naturally dropping into position over them. The convenient Scroll Ring surrounds the base of the trackball and provides fingertip control of scrolling, from line-by-line to speeding through pages. The optional TrackballWorks programming software permits customization or reassignment of the buttons and offers advanced scrolling control options.The Orbit Trackball with Scroll Ring is sized to best fit the needs of small to average sized hands. Users with larger hands may wish to consider one of the larger trackball options.

The Pro Fit Ergo Vertical Wireless Mouse from Kensington presents with a body angle of approximately 47°. A short flange keeps the side of the hand clear of the surface but still permits most of the little finger to make contact during movement. This wireless mouse is contoured specifically for right-handed use and operates plug-and-play. However, optional drivers are available for both Windows and Mac OS should one desire to customize the button functions. A convenient DPI switch accommodates quick access to four DPI settings (800, 1000, 1200 and 1600) to accommodate different work requirements. The wireless receiver offers an impressive 20 metre range and can be stored in the underside of the mouse to ensure it isn't misplaced. The scroll wheel is spherical and has a lower protrusion from the body of the mouse than most traditional scroll wheels with rotation being possible using the side of the fingers. Detents provide clear feedback but the smaller diameter of the scroll "sphere" seems to require a greater degree of force than most traditional "wheel" designs.

The size of this mouse means it is best suited for smaller to average sized hands. The body is narrower than most vertical mouse designs, which can lead to a tendency to want to "grip" the mouse which has the potential to lead to exerting unnecessary static grip force.
Note: While being identified by the manufacturer as a "vertical" mouse this angle is substantially less than most other "vertical" mousing products, the majority of which orient the hand well above 60° and therefore much closer to a truly vertical presentation.

The Expert Mouse Wired Trackball from Kensington is a well-established and proven mousing solution. The large lightweight 55 mm ball features a silky, smooth movement that offers sufficient resistance without straining the fingers. This smooth movement, combined with Diamond Eye optical technology, ensures precision level cursor control is available for gaming, photo editing, or everyday work. The Expert Mouse Wired Trackball also features a ScrollRing around the base of the ball, giving users easy access to quick scrolling whenever necessary.

Basic mouse click functions are plug-and-play but users also have the option of installing the TrackballWorks software for total customization of the 4 large buttons surrounding the ball. Custom and program-specific commands and macros can be programmed for easy completion without the hand leaving the trackball. The ambidextrous design easily accommodates both right and left-handed use and includes a detachable rest to aid users in maintaining a more ergonomic neutral wrist alignment.

Users who prefer a wireless device may wish to consider the Expert Mouse Wireless and Bluetooth Trackball which offers all of the same functionality as the Expert Mouse Optical but with the addition of both Bluetooth and standard 2.4 Ghz wireless freedom.

The Expert Mouse Wired Trackball will fit most hands. However, if a user has a small hand they may wish to consider the Orbit Trackball with Scroll Ring which features a smaller 40 mm trackball and is better suited for smaller hands.

The Pro Fit Ergo Vertical Wireless Trackball from Kensington offers thumb-operated cursor control that eliminates the traditional arm and hand movement required with a traditional mouse. It also moves the hand and forearm away from a prone position by angling the hand outward at 60°. The 34mm trackball offers silky-smooth movement with adjustable optical tracking from 400-1500 DPI. The contoured body provides a support for the hand, naturally positioning the fingers over the right and left buttons. Side scrolling function is provided by a tilting scroll wheel that features crisp detents, conveniently positioned between these buttons to complete the traditional mouse control layout. The index finger has easy access to convenient Back and Forward Buttons for browsing through multiple pages of a document or web page.

The Pro Fit Ergo Vertical Wireless Trackball offers Dual Connectivity that can simultaneously support connections to up to 3 computers or devices (1 via the included 2.4 GHz receiver and up to 2 more via Bluetooth.

As the Pro Fit Ergo Vertical Wireless Trackball places the workload fully upon the thumb, (which on most other trackballs is generally shared by several fingers), anyone who has existing thumb issues would be well-advised to consider alternative solutions.

The Pro Fit Full Size Mouse from Kensington is a contoured mouse for right-handed users. This durable USB mouse requires no drivers and comes with a PS/2 adapter. DPI settings can be changed using the switch behind the scroll wheel. Wired and wireless models are available.

Kensington has taken their venerable Expert Mouse Optical to a new level with the new Expert Mouse Wireless Trackball. Longtime or novice trackball users now have the freedom of wireless available in a full-size trackball with the additional option of selecting whether to connect via Bluetooth 4.0 LE or traditional 2.4 GHZ wireless using a USB nano receiver. This unique dual-connection feature makes the Expert Mouse Wireless Trackball a good choice for those with a limited number of USB ports or who wish to use the trackball on multiple systems, employing Bluetooth on one and using the RF Receiver on a second or non-Bluetooth compatible system.

The Expert Mouse Wireless Trackball employs Diamond Eye optical technology for smooth, precise tracking and features the well-known Kensington Scroll Ring for quick scroll access on web pages and within lengthy documents. Four large buttons provide easy access to primary functions and can be easily customized to personal preferences through the Kensington TrackballWorks software. The ambidextrous design easily accommodates both right and left-handed use and includes a detachable rest to aid users in maintaining a more ergonomic neutral wrist alignment.

The Pro Fit Ergo Wireless Mouse from Kensington presents with a body angle of approximately 40°, rotating the hand away from a traditional fully prone position. This wireless mouse is contoured specifically for right-handed use and operates plug-and-play. It is able to connect via either standard 2.4 GHz wireless with the included receiver dongle, or through Bluetooth 4.0 with devices that can support this option. A switch on the underside changes mode and doubles as a batter-saving power switch. Optional software is available for both Windows and Mac OS should one desire to customize the button functions. A convenient DPI switch just behind the scroll wheel accommodates quick access to three DPI settings (800, 1200 and 1600) to accommodate different work requirements. The wireless receiver can be stored in the underside of the mouse to ensure it isn't misplaced. The scroll wheel has detents to provide clear feedback response. The click action is somewhat soft and very quiet. This lack of tactile and auditory feedback may make it difficult to determine when clicks have truly activated and may lead to a greater degree of force being exerted, resulting in unnecessary stress on the fingers.

The size of this mouse means it is best suited for smaller to average sized hands as those with larger hands will find their palm either unsupported or their fingers extending past the end of the buttons, with the "inset" of the buttons into the body of the mouse making it difficult to perform clicks. The body is fairly narrow as well, encouraging "gripping" rather than permitting larger hands to relax.

The Pro Fit Left-Handed Ergo Wireless Mouse from Kensington presents with a body angle of 41°, rotating the hand away from a traditional fully prone position. This wireless mouse is contoured specifically for left-handed use and operates plug-and-play via standard 2.4GHz wireless with the included receiver dongle. Optional software is available for both Windows and Mac OS should one desire to customize the button functions. A convenient DPI switch just behind the scroll wheel accommodates quick access to three DPI settings (800, 1200 and 1600) to accommodate different work requirements. The wireless receiver can be stored in the underside of the mouse to ensure it isn't misplaced.

The size of this mouse means it is best suited for smaller to average sized hands as those with larger hands will find their palm either unsupported or their fingers extending past the end of the buttons, with the "inset" of the buttons into the body of the mouse making it difficult to perform clicks. The body is fairly narrow as well, encouraging "gripping" rather than permitting larger hands to relax.