Logitech Ergo M575S Wireless Trackball Mouse Off-White Blue Ball

• Amazon now offers Logitech Wireless Trackball Mouse with Blue and White Ball, now $37.99 (was $49.99).
• Prime members get free two-day shipping, and regular members get free shipping on orders over $35 within the contiguous U.S.
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Editor's Pick: Do your wrists or forearms feel sore after using a mouse for a while? With a trackball, you just roll it with your thumb to control the cursor, so you don't need to move your hand around the desk. The left and right buttons are quiet, making it perfect for office use without disturbing others. It connects via Bluetooth or a receiver, so you can switch computers without re-pairing. One battery lasts over a year, so you won't have to worry about charging.