Kensington K72080WW SlimBlade Pro Trackball Wired+Wireless Mouse (Black)

Professional reviewers and ergonomists agree that finger-operated trackballs are superior to thumb-based trackballs when it comes to precision and hand comfort. At the same time professional users prefer the convenience of wireless controllers. Kensington has responded with its most advanced trackball yet: the SlimBlade Pro Trackball.
Now you can enjoy the precision and ease of a finger-operated trackball that includes Bluetooth 2.4GHz wireless and wired capabilities as well as unique dual-sensor ball-twist scrolling. The trackball takes up less desk space than what is needed to operate a mouse and is more comfortable during extended use because it requires less arm and wrist movement.
Features
Wired+Wireless Triple Connection Capability
Compatible with Bluetooth BT3.0/BT5.0.
Features 2.4GHz wireless dongle (USB-A with USB-C to USB-A adapter) and 1.5m USB-C to USB-A charging cable (USB-C port on the trackball).
Rechargeable battery provides 4 months battery life with single charge via USB-C port.
Large 55mm trackball lets users scroll up and down web pages and documents with quick precision via a simple twist .
Low-profile shape allows all-day comfort for both right-handed and left-handed users.
Dual sensors accurately track the large 55mm ball provides highly accurate and responsive cursor tracking and scrolling.
Plug and Play - Simply plug in the USB cable to the trackball and users will be up and running quickly.
Can assign a wide variety of program functions to 8 sets of programmable buttons with KensingtonWorks installed.
Government-grade 128-bit AES encryption for enhanced security to deter hackers from monitoring wireless connection and capturing sensitive information.
Specs
Compatible OS: Windows 7 or later [32-bit/64-bit] (*Windows 11 64-bit only) macOS 10.13 or later.
Color: Black
Sensor: Optical
Trackball Diameter: 55 mm
Wireless Type: 2.4GHz Bluetooth
Buttons: 4 individual buttons + 4 sets of combo buttons
Scroll Type: Ball
Size and Fit: Ambidextrous
Battery: Rechargeable
Battery life: up to 4 months
Cable length: 1.5m
Box Content
Kensington SlimBlade Pro Trackball
2.4GHz wireless dongle
USB-C to USB-A Charging Cable