Feature: 1. 4 Adjustable DPI: The wired mouse features 4 adjustable DPI settings for your everyday needs. The upgraded technology of this wired mouse ensures smoothed and precise tracking on a variety of surfaces. When changing the DPI, the LED light will flash a number of times corresponding to the DPI level. 2. Silent Click: Vertical mouse clicks are virtually silent and can be applied even in quiet environments such as libraries. Using this silent click wired mouse reduces distractions to yourself and others, so you can better focus on the task at hand. 3. Ergonomic: Ergonomically designed to bring the palm of the hand closer to a vertical angle to the tabletop for smoother, more flexible movement. This helps reduce arm discomfort and effectively relieves wrist discomfort. Ideal for extended computer use. 4. Compatible: Compatible with a wide range of devices including for Windows, for Chrome, for Linux, Laptop (Side buttons are not compatible with for OS X). Low power consumption warning to remind you to keep an eye on the power level and ensure stable mouse usage. 5. Plug and Play: Easy to use. Simply plug in the included 1.5m / 59.1in USB cable to get started, no drivers to install. Smoothed and long lasting, providing you with a long lasting user experience. Specification: Item Type: Vertical Wired Mouse Material: ABS DPI: 3200 / 2400 / 1200 / 800DPI Cable Length: Approx. 1.5m / 59.06in For Windows, for Chrome, for Linux, for Laptops. Package List: 1 x Vertical Wired Mouse Note: The mouse is more suitable for medium sized hands.