The M570 Wireless Trackball takes most of the repetitive movements and strain which the entire hand usually must perform and allocates all the workload to the thumb of the user. Accurate optical tracking is provided by a 570 DPI laser sensor housed below the ball. With a contoured body that provides a relaxing support for the hand, the M570 is equipped with a scroll wheel and right and left click buttons, all positioned as with a traditional mouse. In addition there are Back and Forward Buttons for convenience when browsing through multiple pages.

Connection is via a storable USB mini receiver and a single AA battery can provide up to 18 months of service. A battery life indicator will advise when the battery needs replacing. Software available from Logitech enables users to customize their trackball functions and performance.

Note: As the M570 places the workload fully upon the thumb, (which on most other trackballs is generally shared amongst several fingers), anyone who has existing thumb issues would be well-advised to consider alternative solutions.

The Microsoft Arc Touch Mouse from Microsoft is an excellent choice for mobile mousing; its flexible design curves for comfort and flattens to pack. When curved, the mouse turns on, and when flattened, the mouse turns off (no button required). To scroll simply touch the scroll pad or flick it for fast vertical scrolling. The BlueTrack technology ensures accurate tracking on virtually all surfaces and the convenient 2.4 GHz Nano-Receiver can stow magnetically on back of mouse. For left-handed or right-handed users.

La Microsoft Arc Touch Mouse par Microsoft est une un choix excellent pour faire la souris dans les applications mobile; la conceptions est flexible car elle peut être courbée pour le confort, aussi que mis plat pour la ranger. Quand qu'elle est courbée, la souris est activée, et quand qu'elle est mis plat, elle est désactivée (pas de bouton bessoin). Pour faire le défilement, simplement touch le pad de défilement. Pour les usageur(euses) gaucher(ère) ou droitier(ière).

Soft-touch materials and an ergonomic design fit your hand as naturally as a handshake - somewhat similar to a vertical mouse, but with less support of the hand. Features include an open window selector (accessed through the scroll wheel button), 4-way Vertical and Horizontal Scroll with Tilt Wheel Technology and Magnifier software - point and click to enlarge and edit detail using the Magnifier. All 5 buttons are customizable with the installation of the driver. Note this product uses RF (radio frequency) transmissions to make it wireless.

This product is discontinued, the recommended replacement is the Microsoft Wireless Laser Mouse 6000 (QVA-00003).

The Sculpt Ergonomic Mouse from Microsoft is intended to encourage more natural hand and wrist postures with an angled body designed to remove the wrist from contact with the mousing surface. The sculpted thumb scoop helps the hand maintain this angled position which is intended to reduce pressure on the carpal tunnel. Windows 8 users can benefit from the clearly marked Windows Logo key which provides quick access to the Start Screen. The scroll wheel provides full 4-way scroll control and a convenient Back button is available for quicker navigation. While somewhat similar in design to the discontinued Natural Wireless Laser Mouse 6000, it should be noted that this mouse is smaller in all dimensions than the 6000. While making it easier to transport, by definition it provides less support for most individuals who do not have relatively small hands.

One limitation of this mouse is that it is designed to work only with recent versions of Windows (7, RT, & 8). and a driver download is necessary to take advantage of all the features.