Logitech M325s Wireless Optical Mouse - Dark Silver The Logitech M325S Wireless Mouse 910-006814 is a better mix of precision and comfort with designed-for-Web scrolling - Micro-precise scrolling makes surfing and browsing easier - Feel-good, contoured shape with textured rubber grips - Up to 18-month battery life. Designed to improve your online experience, the wheel also helps perfect scrolling when you're using other applications, such as Microsoft Office or Adobe PDF. Battery life may vary based on user and computing conditions.