ELECOM Ergonomic Comfort Design Trackball IST Wireless 2.4GHz Connect,

Ergonomics shape that can be operated in an easy posture and an overwhelmingly smooth operability, a thumb fingering type trackball IST.
Adopts an ergonomics design that can be used in a natural hand without holding it. Regardless of the size and grip of the hand, it is a shape that fits into the hand.
An angle that does not burden the wrist, it is comfortable even in long hours of work.
Bearings are made of high performance bearing made by Japanese manufacture. Because the resistance due to friction is reduced, a smooth pitching like floating in the air has been realized.
The support unit can be easily removed, and can be replaced with artificial rubies as well as bearings.
The replacement bearing unit (M-BS10) and the artificial ruby unit (M-RS10) are sold separately.
Adopts a 36mm diameter large ball that fits the thumb. The pointer can be moved extensively and delicately by one operation.
The replacement ball (M-B10SV) is sold separately.
Equipped with 5 buttons including forward and back buttons that are convenient when operating web browsers and folders.
The function assignment of the button can be changed using ELECOM Mouse Assistant that can be downloaded for free.
The receiver can be stored in the main unit, hard to lose and is convenient to carry.
There is a power switch on the upper surface of the main unit. You can turn on/off the power supply smoothly without turning over the body.
Connector shape: USB-A plug
Compatible models: WindowsOS, MacOS, ChromeOS equipped with USB ports
Compatible OS, Windows 11/10, MacOS Ventura 13, ChromeOS
Sensor decomposition ability: 500dpi number: 5
Battery life: up to about 25 months
External dimensions: width 3.8 in x depth 5.0 in x height about 2.0 in, Weight: about 5.2oz
Contents: trackball x 1 unit for test batteries x 1, removal tool x 1, 1 receiver x 1

FEATURES

• STEEL ROLLER BEARING MOUNTED TYPE - Roller Type Bearing Provides the Ultimate Feelings and Smoothness. The bearing designed by Japanese manufactrer provides friction-free ball oparation.
• INTERCHANGEABLE BEARINGS - Replaced with ELECOM bearing parts that sold separately
• ERGONOMIC DESIGN - Supports your hand in a natural angled position 28 degree for all day comfort.
• 36mm SILVER BALL SIZE - Easy to move from one end to the other even on large screens.
• Dimesion - Width 3.8 inch x Length 5.0 inch x Height 2.0 inch, Weight : 5.2oz
• *This product does not include replacement Ruby Ball bearings.