EuroOffice Trackbar Emotion Ergonomic Computer Mouse, BlackTrackbar Emotion is the most advanced ergonomic computer mouse on the market - to a significantly lower price than similar products!A much wider roll than other roll-using devices available todayallows for precise cursor motion with considerably less manual effort and thus greater comfort and a faster learning curve.Features:* Highlysensitive, large buttons to operate - most traditional mice require up to 3 times the force! The latest studies indicate that using less force helps prevent and rehabilitate suffering.* Carefully analyzed surfaces are well suited to users who compute five or more hours daily: maximum comfort is achieved with materials that are non-sweat-promoting, smooth and soft.* Buttons can be programmed, using a software that can be downloaded free of charge, to give the user to the critical advantageof speeding up repetitive processes and greatly reducing "mousing" strain on hand and arm muscles.* Dual sensors - The only ergonomic computer mouse with dual optical sensors; 2 x 1000 dpi sensorscreate unbeatable performance.* Microphone - Trackbar Emotion has a built in microphone, enabling the user to use voice control software and thus replace hand movements with spoken commands.* Dimensions - User feedback suggests that existing ergonomic computer mice are too bulky. Today"s computer is smaller than it was during the 90"s! Trackbar Emotion has evolved to accommodate the modern workplace with ergonomically correct and up-to-date dimensions.* Ease of use - No setup required!Plug"n"play makes Trackbar Emotion ready for immediate use.* "Switchability" - Trackbar Emotion is the only ergonomic computer mouse available today enabling users to rotate the device 180 degreeswith the flick of a switch so they may have the bar close to their body rather than the keyboard - a direct response to users" valued feedback.* Style - No one wants to look at an u