Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"

Kensington Expert Wireless Trackball Mouse (K72359WW) Black, 3.5" x 6.1" x 8"|Item Condition: |New|Brand: |Kensington|Manufacturer: |Kensington|Model: |K72359WW|Color: |Black|Product Dimension: |6.02 x 4.92 x 2.76|Product Information|Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease|Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design|Customizable 4-button design, scroll speed and cursor speed via KensingtonWorks software|Connects wirelessly via built-in Bluetooth 4. 0LE or with the USB dongle using 2. 4Ghz wireless; Auto-sleep helps conserve battery life|Compatible with Windows, macOS (10. 8 and later), and Chrome (OS 44 and later); 3 year coverage and technical support