The information below is per-pack only Long-Lasting Durability: Equipped with microswitches rated for up to 20 million clicks, this wired mouse ensures enduring performance and reliability. The left/right buttons are rated for up to 3,000,000 clicks and the scroll for up to 1,000,000 clicks, ensuring extensive long-term usage Ergonomic Design: Created to be an ambidextrous full-size mouse, the 300 is ideal for anyone who needs 24/7 reliability. This full-size mouse, weighing 120g, is comfortable for all-day use and has a clean and streamlined design that keeps you productive and efficient Excellent Precision Control: The 300 offers exceptional precision and high resolution with a 1600 DPI tracking, allowing for optimal sensitivity and cursor control for gaming or everyday use Wired Plug-and-Play: Experience consistently reliable responsiveness with a USB wired connection, ensuring a stable and lag-free connection for uninterrupted productivity and precision Streamlined 3-Button Design: Navigate effortlessly with a simple and convenient 3-button layout, including a clickable scroll wheel for intuitive and efficient control, no matter your task