Feature: 1. [Ergonomic Design]: The vertical mouse is specifically designed for right handed users, fitting comfortably in the grip, wrist, and arm position, provides smoothly and effortless experience, ensuring long lasting comfort. 2. [Adjustable DPI]: With 3 DPI settings of 800, 1200, and 1600, you can customize the sensitivity of the mouse based on your needs or preferences. The optical tracking technology offers precise cursor control and higher sensitivity. 3. [RGB LED Light]: Featuring 6 different colors, the mouse is perfect for nighttime use. The back and forward buttons near the thumb provide convenience, allowing you to navigate to the desired page with a single click. 4. [Plug and Play]: Simply plug the USB receiver into your computer or connect via Bluetooth, and you can use the mouse. It is battery powered by two AAA batteries(battery not included). 5. [Wide Compatibility]: The vertical mouse is compatible with various operating systems, including for Windows 7, 8, 10, for XP, for Vista 7, 8, for Linux, and for OS X. It works seamlessly with laptops, PCs, tablets, and more. Specification: Item Type: Vertical Mouse Material: ABS Color: Black Battery: 2 x AAA (shipped without battery) DPI: 800 1200 1600 Connection Mode: 2.4G and Bluetooth Number of Buttons: 6 Bluetooth Version: BT5.0. Package List: 1 x Vertical Mouse1 x Receiver