Let your work speak louder than clicks. M330 Silent Plus provides advanced comfort for the right hand, excellent accuracy, long battery life, and broad compatibility—all while reducing over 90%. Sound level comparison between Logitech M330 and Logitech M170. Left click dBA measured by an independent lab at 1m. of clicking sounds. That means full focus for you and a quieter environment for those around you. M330 is a result of Logitech’s expertise and innovative approach designing comfortable solutions for over 25 years. Its asymmetric shape is meticulously crafted to guide your right hand to a natural position, while the soft rubber surface with distinctive patterns improves touch feeling. All that allows you to work or study comfortably for hours.