ELECOM 2.4GHz wireless finger-operated large trackball mouse, 8-button function with smooth tracking, precise optical gaming sensor, wrist rest (M-HT1DRBK)

["Optical Tracking Technology: The ELEOM trackball provides precise cursor movement, allowing you to quickly reach your desired location on the screen with fewer hand movements, increasing your productivity and efficiency.", "8 Buttons: With the ELECOM Mouse Assistant, you can assign a preferred function to each button. The ELECOM Mouse Assistant software is available for download on the ELECOM NET website.", "DPI Cursor: Designed with a powerful gaming optical system with sensor and lens. With the DPI button, you can easily switch between 500 (LOW), 1000 (MID), and 1500 (HIGH) DPI, making your cursor movements faster or slower.", "Easy Maintenance: The ball rolls on three 2.5mm artificial ruby ball bearings. They are extremely smooth, and the relatively large size prevents clogging from dust and dirt. This means you don't have to clean the ball bearings too often. The ball is held by the ball bearings but can be easily removed from the device by pushing them out through the hole in the bottom for easy cleaning.", "Product Details: System Requirements: Windows XP, Windows 7, Windows 8.1, Windows RT8.1, Windows 10 or higher, Mac OS 10.12 or higher, Size: W 114.7mm x L 181.9mm x H 57.2mm, Weight: 260g (without battery), DPI: 500/1000/1500 Count (switchable), Connectivity: Wireless, 2 x AA Battery (included) equipped with battery remaining light."]