Feature: 1. RIGHT HANDED ERGONOMIC DESIGN: This vertical mouse is specifically designed for right handed users to maintain a natural grip position and prevent wrist pain during extended use. 2. SMART WAKE UP AND SLEEP: The wireless vertical mice features automatic sleep and wake up functions. It enters sleep mode if inactive for a period of time and can be easily awakened by pressing any button. 3. ADJUSTABLE DPI LEVELS: Easily adjust the sensitivity of the mouse with 800 1200 1600 DPI settings. Equipped with a optical engine for faster response, smoother tracking, and higher precision movements. 4. WIDE COMPATIBILITY: Vertical ergonomic mouse is compatible with PC, laptops, and all devices with USB connectivity, no additional drivers required for plug and play convenience. 5. DURABLE CONSTRUCTION: With a lifespan of up to 50 million clicks, ergonomic optical mouse offers superior durability. The elegant rubber matte finish provides a good grip, while also preventing fingerprints and smudges. Specification: Item Type: Wireless Mouse Material: ABS Battery Type: Requires 2 x AAA batteries (not included) Sensitivity: 800 1200 1600 DPI adjustable System Requirement: for Windows 2000 XP, for Vista CE, for win 7, for win10, for Linux, for Android Application: for Notebook PC, Tablet etc.. Package List: 1 x Mouse 1 x Adapter 1 x Manual