RGB LED Backlighting: Colorful lights emanate from the front and back of the mouse, creating stunning visual effects. The default 7 colors correspond to 7 DPI levels. Choose from over 16.8 million colors and various modes via the software to personalize your experience and find what works best for you, providing a wonderful visual experience and fun. Ultimate Hand Feel: The most important thing is that you'll enjoy using the AJ52 mouse. Designed and adjusted repeatedly to achieve the perfect fit for your hand. Top-level UV coating technology provides a long-lasting, soft surface and comfortable side grip. This mouse will provide a comfortable and enjoyable user experience every time. Unique Side Design: Smaller side buttons and a unique radian design, streamlined modeling, and symmetrical design on both sides, fully consider the feel of the thumb and ring finger.