Feature: 1. The mouse is specially ergonomically designed for right-handed users to reduce muscle tension. Wrist pain, shoulder fatigue, carpal tunnel syndrome, and tendonitis can be relieved 2. Enjoy fast data transmission with the convenience of wireless technology. 2.4 GHz wireless technology provides a stable and reliable connection without interference within a 360 degree range within 10 meters 3. Equipped with an advanced optical engine to provide faster response speed, smoother tracking, and higher precision movement. 3-level DPI (800/1200/1600) meets general and gaming needs 4. Comes with smart power saving, the independent on / off button at the bottom can save power effectively 5. Robust, reliable and easy-to-use 2.4GHz wireless connection, just plug it in and play. The size of the vertical mouse will fit perfectly in the palm of your hand. Can transport without restrictions Specification: Item Type: Vertical Optical Mouse Computer connection: Wireless Optical Resolution: 1600DPI Transmit power: + 5db maximum Number of keys: 6 keys Wireless transmission frequency: 2.4Ghz Adjustable resolution: three levels or less Lithium polymer battery: 500 mAh How to use: 1. Turn on the mouse power switch 2. Insert the wireless USB header into the USB interface 3. Mouse can be used Package list: 1 x Mouse 1 x Charging Cable 1 x USB header 1 x User Manual