Kensington Orbit Wireless Trackball with Scroll Ring - Space Gray (K72675WW), Black/Grey | 1600 DPI Ergonomic Trackball Mouse

• Dual wireless connectivity offers the flexibility of 2.4 GHz and Bluetooth (3.0 and LE), with 128-bit AES government-grade encryption security
• The scroll ring lets you spin the dial to move up and down web pages or documents with complete ease. And the 40mm ball’s hard surface is specially designed as a perfect sphere for precise tracking and control
• Four DPI settings let you easily adjust the cursor speed to fit your needs by selecting the appropriate level (400, 800, 1,200, or 1,600) — lower DPI for precision editing, and higher DPI for word processing or casual browsing
• Ambidextrous design works equally well for right-handed and left-handed users. Trackball reduces wrist and hand movement to ease repetitive-stress injuries
• Free KensingtonKonnect downloadable software provides a personalized experience, giving you the ability to assign a variety of functions (including shortcuts) to the buttons, and adjust cursor and scrolling speed
• Optical tracking technology delivers precise cursor movement for superior accuracy, so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency
• A detachable wrist rest delivers soft cushioning to support the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer
• Mac and PC compatible

• Connect the Trackball — Choose your connection: plug the USB receiver into your computer for 2.4 GHz wireless, or pair via Bluetooth 3.0/LE through your device's settings. Ensure batteries are installed and the power switch is on.
• Adjust Cursor Speed — Press the DPI button located near the scroll ring to cycle through four settings (400, 800, 1200, 1600 DPI) until you find the cursor speed that best suits your task and preference.
• Customize Buttons (Optional) — Download the free KensingtonKonnect software from Kensington's website. Use it to assign custom shortcuts or functions to the trackball's buttons for a personalized workflow.
• Utilize the Scroll Ring — Place your finger on the scroll ring and spin it clockwise or counter-clockwise to navigate up and down web pages, documents, or timelines with ease and precision.

Typical situations where Kensington Orbit Wireless Trackball with Scroll Ring - Space Gray (K72675WW) helps — illustrative scenarios, not customer reviews.