SCROLLS SMARTER. FITS BETTER. Upgrade to smarter scrolling, better comfort, and more productivity. The Signature M550 features SmartWheel scrolling that delivers precision or speed the moment you need it. A choice of sizes for smaller and larger hands means there's a perfect fit for anyone. Seamless wireless connectivity, silent clicks, and the contoured shape keep you comfortable and productive hour after hour. SMARTWHEEL SCROLLING Make scrolling work for you with Logitech SmartWheel. Get line-by-line precision when you need to focus on the details, and scroll super fast when you just want to breeze through lengthy pages. Automatically switch modes with the flick of your finger. THE PERFECT FIT FOR YOUR HAND Choose the Signature M550 that fits you best. We recommend the M550 for small-to-medium hands and M550 L for large-sized hands.
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