Nakabayashi Co,Ltd. Digio2 Bluetooth Wireless Trackball for Window PC and Mac and Android (Black)

Bluetooth wireless trackball mouse" Nakabayashi acquired FCC certification. Track ball will automatically adjust to optimize the pointer speed. Track ball adjusts the pointer speed (resolution/dpi). It automatically adjusts between 450-1200 dpi according to the speed at which the ball moves. If you move the ball quickly. the pointer will also move faster over large distance. If you move it slowly, the pointer speed will become slow and it would allow finer operation. By pressing the SPEED button, you may switch over the fixed mode Points to keep in mind when using the auto mode (For windows) The following settings are recommended for making the best out of the function. Go to Control pantel> Mouse properties> pointer option, and uncheck improve the pointer's accuracy. If this is not unchecked, it may interfere with the function. Bluetooth Trackball everyone had been waiting for put on the market. This is rare type in the Trackball market. Easy to carry at anywhere for not big size like other trackballs. No need to worry about button noise for adopted Queit Button. Side Buttons of ''FORWARD'' and ''BACK'' on internet (*Mac: not corresponding) For DETAILS, please refer to some images of English instruction on product pages. Please note that English instruction is not included with products.