ELECOM-Japan Brand- Wireless Trackball Mouse for Left Hand, Thumb Operated Model, Ergonomic Grip, Tilt Function, 6 Buttons, Black/M-XT4DRBK

【ADVANCED RESPONSIVENESS】: An innovative wireless mouse with precision optical sensor, the thumb trackball offers superior movement and pin-point accuracy 【COMFORTABLE and ERGONOMIC DESIGN】 - Keep your hand and wrist more stable with our streamlined design that improves natural comfort, feel, and movement 【6 BUTTON KEY BINDING】: Each trackball mouse boasts 6 unique thumb and finger buttons for binding keys for web surfing, playing MMOs, or fast-twitch shooting 【ADJUSTABLE RESOLUTION】: Get the blazing responsiveness or steady pathing you need by switching between 750/1500 resolution; perfect for home or office use 【ROBUST WIRELESS CONNECTIVITY】: Enjoy the same flawless response you get from a wired mouse with our design thanks to the premium 2.4 GHz connection