Welcome to our store! 1. ERGONOMIC DESIGN: The vertical grip design keeps your forearm muscles in a comfortable position for smoother, more flexible movement, reducing arm discomfort and effectively relieving wrist pain. 2. ADJUSTABLE DPI: The vertical mouse allows switching between 3 available DPI options (800, 1200, 1600) to adjust the ergonomic gaming mouse's responsiveness according to your needs and preferences. 3. OPTICAL DESIGN: The ergonomic mouse with optical tracking technology helps ensure greater sensitivity for precise tracking on a variety of surfaces. 4. THUMB BUTTONS AND RGB LEDs: Use the back and forward buttons near the thumb area for maximum convenience. When you forget to click the back button every time, just click once to jump to the desired page. Adjustable RGB LED light with 6 different color transitions for nighttime use. The special design enhances your sense of use. 5. PLUG AND PLAY: To avoid the hassle of being tied down by cords or cables, plug the USB receiver into your computer or connect via Bluetooth and use it. Compatible with Windows 7 8 10 XP Vista 7 8, Linux, and OS X operating systems. Suitable for laptops, computers, tablets, and other devices. Item Type: Wireless Vertical Mouse Product Material: ABS Color: Gray Battery: 600 MAh Polymer Lithium-ion Battery (built-in) DPI: 800/1200/1600 Connection: 2.4G and Bluetooth Number of Buttons: 6 Bluetooth Version: BT 5.0 1 x Vertical Mouse 1 x Receiver 1 x USB Cable 100% Satisfaction - Our customers are our priority. If you encounter any problems with the products after receiving the item, such as damage and incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory customer service.